Fan speed is changed, so it is the independent variable. Drying time is the measured dependent variable.
Step 2
Why this answer is correct
The correct answer is A. पंखे की गति / Fan speed. Fan speed is changed, so it is the independent variable. Drying time is the measured dependent variable.
Step 3
Exam Tip
पंखे की गति बदली जाती है इसलिए यह स्वतंत्र चर है। सूखने का समय मापा गया आश्रित चर है।
The size of the ice cube is changed, so it is the independent variable. Melting time is the dependent variable.
Step 2
Why this answer is correct
The correct answer is A. बर्फ के टुकड़े का आकार / Size of ice cube. The size of the ice cube is changed, so it is the independent variable. Melting time is the dependent variable.
Step 3
Exam Tip
बर्फ के टुकड़े का आकार बदला जाता है इसलिए यह स्वतंत्र चर है। पिघलने का समय आश्रित चर है।
The slope angle is deliberately changed, so it is the independent variable. Speed is the dependent variable.
Step 2
Why this answer is correct
The correct answer is D. स्वतंत्र चर / Independent variable. The slope angle is deliberately changed, so it is the independent variable. Speed is the dependent variable.
Step 3
Exam Tip
ढलान का कोण जानबूझकर बदला जाता है इसलिए यह स्वतंत्र चर है। गति आश्रित चर होगी।
The amount of water is changed by the experimenter, so it is the independent variable. Seedling length is the dependent variable.
Step 2
Why this answer is correct
The correct answer is A. पानी की मात्रा / Amount of water. The amount of water is changed by the experimenter, so it is the independent variable. Seedling length is the dependent variable.
Step 3
Exam Tip
पानी की मात्रा प्रयोगकर्ता बदलता है इसलिए यह स्वतंत्र चर है। अंकुर की लंबाई आश्रित चर होगी।
The number of batteries is deliberately changed, so it is the independent variable. The changed factor is the independent variable.
Step 2
Why this answer is correct
The correct answer is A. बैटरियों की संख्या / Number of batteries. The number of batteries is deliberately changed, so it is the independent variable. The changed factor is the independent variable.
Step 3
Exam Tip
बैटरियों की संख्या जानबूझकर बदली जाती है इसलिए यह स्वतंत्र चर है। जो कारक बदला जाए वही स्वतंत्र चर होता है।
The type of surface is changed, so it is the independent variable. The independent variable forms the basis of comparison.
Step 2
Why this answer is correct
The correct answer is A. सतह का प्रकार / Type of surface. The type of surface is changed, so it is the independent variable. The independent variable forms the basis of comparison.
Step 3
Exam Tip
सतह का प्रकार बदला जा रहा है इसलिए यह स्वतंत्र चर है। स्वतंत्र चर प्रयोग में तुलना का आधार बनता है।
The researcher changes the amount of soap, so it is the independent variable. The independent variable is controlled by the experimenter.
Step 2
Why this answer is correct
The correct answer is B. साबुन की मात्रा / Amount of soap. The researcher changes the amount of soap, so it is the independent variable. The independent variable is controlled by the experimenter.
Step 3
Exam Tip
साबुन की मात्रा शोधकर्ता बदलता है इसलिए यह स्वतंत्र चर है। स्वतंत्र चर प्रयोगकर्ता के नियंत्रण में होता है।
The type of soil is deliberately changed, so it is the independent variable. Identify the factor being changed in the question.
Step 2
Why this answer is correct
The correct answer is A. मिट्टी का प्रकार / Type of soil. The type of soil is deliberately changed, so it is the independent variable. Identify the factor being changed in the question.
Step 3
Exam Tip
मिट्टी का प्रकार जानबूझकर बदला जाता है इसलिए यह स्वतंत्र चर है। प्रश्न में बदले गए कारक को पहचानें।
The researcher changes the duration of light, so it is the independent variable. In exams, identify the factor deliberately changed.
Step 2
Why this answer is correct
The correct answer is A. प्रकाश की अवधि / Duration of light. The researcher changes the duration of light, so it is the independent variable. In exams, identify the factor deliberately changed.
Step 3
Exam Tip
शोधकर्ता प्रकाश की अवधि बदलता है इसलिए यह स्वतंत्र चर है। परीक्षा में देखें कि जानबूझकर कौन सा कारक बदला गया है।
The amount of soap is deliberately changed so it is the independent variable. Foam height will be the measured outcome.
Step 2
Why this answer is correct
The correct answer is B. साबुन की मात्रा / Amount of soap. The amount of soap is deliberately changed so it is the independent variable. Foam height will be the measured outcome.
Step 3
Exam Tip
साबुन की मात्रा जानबूझकर बदली जाती है इसलिए यह स्वतंत्र चर है। झाग की ऊंचाई मापा गया परिणाम होगी।
A. पानी की मात्रा बदलकर पौधे की ऊँचाई मापना और पानी की मात्रा को स्वतंत्र चर मानना/Changing water amount and measuring plant height with water amount as the independent variable
Step 1
Concept
Water amount is changed by the experimenter so it is the independent variable. In exams identify the changed factor as the cause.
Step 2
Why this answer is correct
The correct answer is A. पानी की मात्रा बदलकर पौधे की ऊँचाई मापना और पानी की मात्रा को स्वतंत्र चर मानना / Changing water amount and measuring plant height with water amount as the independent variable. Water amount is changed by the experimenter so it is the independent variable. In exams identify the changed factor as the cause.
Step 3
Exam Tip
पानी की मात्रा प्रयोगकर्ता बदलता है इसलिए वही स्वतंत्र चर है। परीक्षा में बदले गए कारक को कारण के रूप में पहचानें।
The number of batteries is deliberately changed so it is the independent variable. In exams identify the changed electrical factor.
Step 2
Why this answer is correct
The correct answer is B. स्वतंत्र चर / Independent variable. The number of batteries is deliberately changed so it is the independent variable. In exams identify the changed electrical factor.
Step 3
Exam Tip
बैटरियों की संख्या जानबूझकर बदली जाती है इसलिए यह स्वतंत्र चर है। परीक्षा में बदले गए विद्युत कारक को पहचानें।
The hanging load is changed so it is the independent variable. In exams identify the cause changed by the experimenter.
Step 2
Why this answer is correct
The correct answer is C. स्वतंत्र चर / Independent variable. The hanging load is changed so it is the independent variable. In exams identify the cause changed by the experimenter.
Step 3
Exam Tip
लटकाया गया भार बदला जाता है इसलिए यह स्वतंत्र चर है। परीक्षा में प्रयोगकर्ता द्वारा बदले गए कारण को पहचानें।
The amount of sand is deliberately changed so it is the independent variable. In exams identify the changed amount of material.
Step 2
Why this answer is correct
The correct answer is D. स्वतंत्र चर / Independent variable. The amount of sand is deliberately changed so it is the independent variable. In exams identify the changed amount of material.
Step 3
Exam Tip
रेत की मात्रा जानबूझकर बदली जाती है इसलिए यह स्वतंत्र चर है। परीक्षा में बदले गए पदार्थ की मात्रा पहचानें।
Surface colour is changed so it is the independent variable. In exams identify the changed property.
Step 2
Why this answer is correct
The correct answer is A. स्वतंत्र चर / Independent variable. Surface colour is changed so it is the independent variable. In exams identify the changed property.
Step 3
Exam Tip
सतह का रंग बदला जाता है इसलिए यह स्वतंत्र चर है। परीक्षा में बदले गए गुण को पहचानें।
Spoon size is deliberately changed so it is the independent variable. In exams identify the factor changed by the experimenter.
Step 2
Why this answer is correct
The correct answer is B. स्वतंत्र चर / Independent variable. Spoon size is deliberately changed so it is the independent variable. In exams identify the factor changed by the experimenter.
Step 3
Exam Tip
चम्मच का आकार जानबूझकर बदला जाता है इसलिए यह स्वतंत्र चर है। परीक्षा में प्रयोगकर्ता द्वारा बदले गए कारक को पहचानें।
The heating time is deliberately changed so it is the independent variable. In exams identify the changed duration.
Step 2
Why this answer is correct
The correct answer is C. स्वतंत्र चर / Independent variable. The heating time is deliberately changed so it is the independent variable. In exams identify the changed duration.
Step 3
Exam Tip
गर्म करने का समय जानबूझकर बदला जाता है इसलिए यह स्वतंत्र चर है। परीक्षा में बदले गए समय को पहचानें।
The compression distance of the spring is changed so it is the independent variable. In exams identify the changed quantity.
Step 2
Why this answer is correct
The correct answer is D. स्वतंत्र चर / Independent variable. The compression distance of the spring is changed so it is the independent variable. In exams identify the changed quantity.
Step 3
Exam Tip
स्प्रिंग के दबाव की दूरी बदली जाती है इसलिए यह स्वतंत्र चर है। परीक्षा में बदली गई मात्रा पहचानें।
The amount of detergent is changed so it is the independent variable. In exams identify the deliberately changed amount.
Step 2
Why this answer is correct
The correct answer is A. स्वतंत्र चर / Independent variable. The amount of detergent is changed so it is the independent variable. In exams identify the deliberately changed amount.
Step 3
Exam Tip
डिटर्जेंट की मात्रा बदली जाती है इसलिए यह स्वतंत्र चर है। परीक्षा में जानबूझकर बदली गई मात्रा पहचानें।
The hole size is deliberately changed so it is the independent variable. In exams identify the changed property.
Step 2
Why this answer is correct
The correct answer is B. स्वतंत्र चर / Independent variable. The hole size is deliberately changed so it is the independent variable. In exams identify the changed property.
Step 3
Exam Tip
छेद का आकार जानबूझकर बदला जाता है इसलिए यह स्वतंत्र चर है। परीक्षा में बदला गया गुण पहचानें।
The lamp distance is changed so it is the independent variable. In exams identify the changed spatial factor.
Step 2
Why this answer is correct
The correct answer is C. स्वतंत्र चर / Independent variable. The lamp distance is changed so it is the independent variable. In exams identify the changed spatial factor.
Step 3
Exam Tip
दीपक की दूरी बदली जाती है इसलिए यह स्वतंत्र चर है। परीक्षा में बदलने वाले स्थान संबंधी कारक को पहचानें।
The amount of water added is changed so it is the independent variable. In exams identify the experimenter's change.
Step 2
Why this answer is correct
The correct answer is D. स्वतंत्र चर / Independent variable. The amount of water added is changed so it is the independent variable. In exams identify the experimenter's change.
Step 3
Exam Tip
डाले गए पानी की मात्रा बदली जाती है इसलिए यह स्वतंत्र चर है। परीक्षा में प्रयोगकर्ता के बदलाव को पहचानें।
The release height is deliberately changed so it is the independent variable. In exams choose the changed factor.
Step 2
Why this answer is correct
The correct answer is A. स्वतंत्र चर / Independent variable. The release height is deliberately changed so it is the independent variable. In exams choose the changed factor.
Step 3
Exam Tip
छोड़ने की ऊँचाई जानबूझकर बदली जाती है इसलिए यह स्वतंत्र चर है। परीक्षा में बदले गए कारक को चुनें।
The amount of salt is changed by the experimenter so it is the independent variable. In exams identify the changed amount.
Step 2
Why this answer is correct
The correct answer is B. स्वतंत्र चर / Independent variable. The amount of salt is changed by the experimenter so it is the independent variable. In exams identify the changed amount.
Step 3
Exam Tip
नमक की मात्रा प्रयोगकर्ता बदलता है इसलिए यह स्वतंत्र चर है। परीक्षा में बदली गई मात्रा को पहचानें।
The stretched length is deliberately changed so it is the independent variable. In exams identify the changed quantity.
Step 2
Why this answer is correct
The correct answer is C. स्वतंत्र चर / Independent variable. The stretched length is deliberately changed so it is the independent variable. In exams identify the changed quantity.
Step 3
Exam Tip
खींची गई लंबाई जानबूझकर बदली जाती है इसलिए यह स्वतंत्र चर है। परीक्षा में बदली गई मात्रा पहचानें।
Paper thickness is changed by the experimenter so it is the independent variable. In exams choose the deliberately changed property.
Step 2
Why this answer is correct
The correct answer is D. स्वतंत्र चर / Independent variable. Paper thickness is changed by the experimenter so it is the independent variable. In exams choose the deliberately changed property.
Step 3
Exam Tip
कागज की मोटाई प्रयोगकर्ता बदलता है इसलिए यह स्वतंत्र चर है। परीक्षा में जानबूझकर बदले गए गुण को चुनें।
Temperature is deliberately changed so it is the independent variable. In exams identify the changed factor.
Step 2
Why this answer is correct
The correct answer is A. स्वतंत्र चर / Independent variable. Temperature is deliberately changed so it is the independent variable. In exams identify the changed factor.
Step 3
Exam Tip
तापमान जानबूझकर बदला जाता है इसलिए यह स्वतंत्र चर है। परीक्षा में बदले गए कारक को पहचानें।
A. अलग अवधि तक प्रकाश देकर पत्तियों की संख्या मापना/Measuring leaf number after giving light for different durations
Step 1
Concept
In the first experiment the duration of light exposure is changed. Therefore time is used as the independent variable.
Step 2
Why this answer is correct
The correct answer is A. अलग अवधि तक प्रकाश देकर पत्तियों की संख्या मापना / Measuring leaf number after giving light for different durations. In the first experiment the duration of light exposure is changed. Therefore time is used as the independent variable.
Step 3
Exam Tip
पहले प्रयोग में प्रकाश देने की अवधि बदली जाती है। इसलिए समय स्वतंत्र चर के रूप में उपयोग हुआ है।
B. आश्रित चर पर उसके प्रभाव की तुलना करना/To compare its effect on the dependent variable
Step 1
Concept
Different levels show how the outcome changes as the independent variable changes. Keep other factors constant.
Step 2
Why this answer is correct
The correct answer is B. आश्रित चर पर उसके प्रभाव की तुलना करना / To compare its effect on the dependent variable. Different levels show how the outcome changes as the independent variable changes. Keep other factors constant.
Step 3
Exam Tip
अलग स्तरों से देखा जाता है कि स्वतंत्र चर बदलने पर परिणाम कैसे बदलता है। बाकी कारक समान रखें।
B. बदली गई खाद की मात्रा स्वतंत्र चर/Changed fertiliser amount as independent variable
Step 1
Concept
The deliberately changed amount of fertiliser is the independent variable. A measured outcome is dependent.
Step 2
Why this answer is correct
The correct answer is B. बदली गई खाद की मात्रा स्वतंत्र चर / Changed fertiliser amount as independent variable. The deliberately changed amount of fertiliser is the independent variable. A measured outcome is dependent.
Step 3
Exam Tip
जानबूझकर बदली गई खाद की मात्रा स्वतंत्र चर है। मापा गया परिणाम आश्रित चर होता है।
