Class XI

volume strain is defined
  1. as the change in volume ΔΔV
  2. as the ratio of change in volume (ΔΔV) to thrice the original volume V
  3. as the ratio of change in volume (ΔΔV) to the original volume V
  4. as the ratio of change in volume (ΔΔV) to twice the original volume V
A metal rod that is 4.00 m long and 0.50 cm2cm2 in cross-sectional area is found to stretch 0.20 cm under a tension of 5000 N. What is Young’s modulus for this metal?
  1. 2.5 ×× 10101010 Pa
  2. 2.6 ×× 10121012 Pa
  3. 2.0 ×× 10111011 Pa
  4. 2.7 ×× 10131013 Pa
When water freezes, it expands by about 9.00%%. What would be the pressure increase inside your automobile’s engine block if the water in it froze? (The bulk modulus of ice is 2.00 ×× 109109 N/ m2m2.)
  1. 24 V DC
  2. 1.80 ×× 108108 N/ m2
  3. 110 V 60 Hz
  4. 416 V 60 Hz
Shear modulus or modulus of rigidity is
  1. the ratio of longitudinal stress to the corresponding shearing strain
  2. the ratio of shearing stress to the corresponding lateral strain
  3. the ratio of shearing strain to the corresponding shearing stress
  4. the ratio of shearing stress to the corresponding shearing strain
The S.I unit of stress is
  1. Watt
  2. Pascal
  3. Joule
  4. Newton
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