Physics Practice MCQ Page 27

Multiple Choice questions for Physics in the sets of 10 each on one page with questions and answers. All sets are useful in the preparation of subject tests for employment or admission.
Question: 3496   the shape of the water meniscus in a glass container indicates that
  1. the cohesion of water to glass is greater than the cohesion between water molecules
  2. the cohesion between water molecules is greater than their adhesion to glass
  3. the adhesion of water to glass is greater than the cohesion between water molecules
  4. the cohesion between the glass molecules is equal to the cohesion between water molecules
Question: 3497   the height of water at two identical dams is the same, but dam A holds back a lake containing 2 cubic miles of water while dam B holds back a lake containing 1 cubic mile of water. The ratio of the total force exerted on dam A to that exerted on dam is B
  1. 2
  2. 1
  3. 1/2
  4. 4
Question: 3498   Sound travels fastest in
  1. air
  2. water
  3. iron
  4. a vacuum
Question: 3499   The variation of the speed of sound with temperature is greatest in
  1. metals
  2. gases
  3. solids
  4. liquids
Question: 3500   A body moves with simple harmonic motion so that its speeds when 2 cm and 3 cm from the centre of the motion are 3 cms-1 and 2 cms-1 respectively. With 5/2 cm from the centre, its speed in cms-1 is
  1. 12/5
  2. 49/20
  3. 5.2
  4. (27/4)2
Question: 3501   Two interfering waves have intensities in the ration 9:1. Then the frequency of the waves is
  1. 4:2
  2. 16:4
  3. 10:8
  4. 100:64
Question: 3502   The speed of sound waves having a frequency of 256 Hz compare with the speed of sound waves having a frequency of 512 Hz is
  1. half as great
  2. the same
  3. twice as great
  4. four times as great
Question: 3503   A water wave is an example of
  1. diffracted wave
  2. electro-magnetic wave
  3. longitudinal wave
  4. transverse wave
Question: 3504   A water wave is an example of
  1. diffracted wave
  2. electro-magnetic wave
  3. longitudinal wave
  4. transverse wave
Question: 3505   A sonometer wire, 100 cm in length has a fundamental frequency of 34c/s. The velocity of propagation of transverse waves along this wire is
  1. 340 metres/sec
  2. 680 metres/sec
  3. 170 metres/sec
  4. 1020 metres/sec
Question: 3506   The velocity of the wave could be increased by
  1. reducing the amplitude
  2. decreasing the frequency
  3. increasing the period
  4. stretching the spring more
Question: 3507   In an organ pipe closed at one end, only the odd harmonics are excited
  1. true
  2. false
  3. uncertain
  4. non of these

Answers to the questions of Physics on this page

Following list gives the correct choice for the answer of the Physics mcqs.
3496 . C       3497 . A       3498 . D       3499 . B       3500 . D       3501 . A       3502 . B       3503 . C       3504 . C       3505 . B       3506 . D       3507 . A      

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