Q. In the experiment to find Young’s modulus, the required quantity is

यंग मापांक ज्ञात करने के प्रयोग में आवश्यक मात्रा है

A
Change in velocity
वेग में परिवर्तन
B
Change in length
लंबाई में बदलाव
C
Change in temperature
तापमान में बदलाव
D
Change in pressure
दबाव में परिवर्तन

Explanation

To calculate Young’s modulus, we need:

  • Original length

  • Change in length (extension or compression)

  • Applied force and cross-sectional area
    ✅ So, change in length is essential.

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