Concept-wise Practice

ruler test MCQ Questions for Class 9

ruler test se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

1 questions tagged with ruler test.

एक प्रयोग में विद्यार्थी प्रतिक्रिया समय मापने के लिए गिरते पैमाने को पकड़ने की दूरी दर्ज करता है। यह दूरी क्या है?

In an experiment a student records the distance a falling ruler travels before being caught to measure reaction time. What is this distance?

Explanation opens after your attempt
Correct Answer

A. प्रतिक्रिया समय का प्रतिनिधि आश्रित चरProxy dependent variable for reaction time

Step 1

Concept

Catch distance is used to estimate reaction time so it is a proxy dependent variable. The ruler should be released from the same position in every trial.

Step 2

Why this answer is correct

The correct answer is A. प्रतिक्रिया समय का प्रतिनिधि आश्रित चर / Proxy dependent variable for reaction time. Catch distance is used to estimate reaction time so it is a proxy dependent variable. The ruler should be released from the same position in every trial.

Step 3

Exam Tip

पकड़ने की दूरी से प्रतिक्रिया समय का अनुमान लगाया जाता है इसलिए यह प्रतिनिधि आश्रित चर है। सभी परीक्षणों में पैमाना समान स्थिति से छोड़ना चाहिए।

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