Fan speed is changed so it is the independent variable. In exams identify the change controlled by the experimenter.
Step 2
Why this answer is correct
The correct answer is C. स्वतंत्र चर / Independent variable. Fan speed is changed so it is the independent variable. In exams identify the change controlled by the experimenter.
Step 3
Exam Tip
पंखे की गति बदली जाती है इसलिए यह स्वतंत्र चर है। परीक्षा में प्रयोगकर्ता द्वारा नियंत्रित बदलाव को पहचानें।
Drying time is the measured result so it is the dependent variable. In exams identify the measured time.
Step 2
Why this answer is correct
The correct answer is D. आश्रित चर / Dependent variable. Drying time is the measured result so it is the dependent variable. In exams identify the measured time.
Step 3
Exam Tip
सूखने का समय मापा गया परिणाम है इसलिए यह आश्रित चर है। परीक्षा में समय के माप को पहचानें।
Temperature 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 B. स्वतंत्र चर / Independent variable. Temperature is deliberately changed so it is the independent variable. In exams choose the changed factor.
Step 3
Exam Tip
तापमान जानबूझकर बदला जाता है इसलिए यह स्वतंत्र चर है। परीक्षा में बदले गए कारक को चुनें।
Melting time changes due to temperature and is measured. In exams identify it as the dependent variable.
Step 2
Why this answer is correct
The correct answer is C. आश्रित चर / Dependent variable. Melting time changes due to temperature and is measured. In exams identify it as the dependent variable.
Step 3
Exam Tip
पिघलने का समय तापमान के प्रभाव से बदलता है और मापा जाता है। परीक्षा में इसे आश्रित चर पहचानें।
D. ताकि तुलना निष्पक्ष हो/So the comparison is fair
Step 1
Concept
Different-sized cubes may melt in different times so their size should be kept the same. In exams understand the role of controlled variables.
Step 2
Why this answer is correct
The correct answer is D. ताकि तुलना निष्पक्ष हो / So the comparison is fair. Different-sized cubes may melt in different times so their size should be kept the same. In exams understand the role of controlled variables.
Step 3
Exam Tip
अलग आकार के टुकड़े अलग समय में पिघल सकते हैं इसलिए आकार समान रखना चाहिए। परीक्षा में नियंत्रित चर की भूमिका समझें।
The duration of sunlight is changed so it is the independent variable. In exams identify the deliberately changed time.
Step 2
Why this answer is correct
The correct answer is A. स्वतंत्र चर / Independent variable. The duration of sunlight is changed so it is the independent variable. In exams identify the deliberately changed time.
Step 3
Exam Tip
धूप की अवधि बदली जाती है इसलिए यह स्वतंत्र चर है। परीक्षा में जानबूझकर बदले गए समय को पहचानें।
The number of flowers is the measured result so it is the dependent variable. In exams identify the counted outcome.
Step 2
Why this answer is correct
The correct answer is B. आश्रित चर / Dependent variable. The number of flowers is the measured result so it is the dependent variable. In exams identify the counted outcome.
Step 3
Exam Tip
फूलों की संख्या मापा गया परिणाम है इसलिए यह आश्रित चर है। परीक्षा में गिने गए परिणाम को पहचानें।
Keeping the soil type the same allows a fair comparison of sunlight effects. In exams treat it as a controlled variable.
Step 2
Why this answer is correct
The correct answer is C. समान रखा गया कारक / A factor kept the same. Keeping the soil type the same allows a fair comparison of sunlight effects. In exams treat it as a controlled variable.
Step 3
Exam Tip
मिट्टी का प्रकार समान रखने से धूप के प्रभाव की निष्पक्ष तुलना होती है। परीक्षा में इसे नियंत्रित चर मानें।
The amount of soap is deliberately changed so it is the independent variable. In exams identify the changed amount of substance.
Step 2
Why this answer is correct
The correct answer is D. स्वतंत्र चर / Independent variable. The amount of soap is deliberately changed so it is the independent variable. In exams identify the changed amount of substance.
Step 3
Exam Tip
साबुन की मात्रा जानबूझकर बदली जाती है इसलिए यह स्वतंत्र चर है। परीक्षा में बदले गए पदार्थ की मात्रा पहचानें।
