Physics Practice MCQ Page 42
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: 3956 Bernouli's principle which is applicable to a fluid in motion. corresponds to the principle of conservation of
- linear momentum
- energy
- mass
- angular momentum
Question: 3957 A capillary tube of length less than the "capillary height" for a given liquid is dipped in that liquid. The the liquid will
- overflow
- rise to the top and bugle out
- rise to the top and the curvature of the menicus will decrease
- not rise to the top
Question: 3958 Bernouli's principle which is applicable to a fluid in motion. corresponds to the principle of conservation of
- linear momentum
- energy
- mass
- angular momentum
Question: 3959 consider the following statements
Assertion (A): A large soap bubble expands while a small bubble shrinks when they are connected to each other by a capillary tube
Reason (R):The excess pressure (due to surface tension) inside a spherical bubble increases, as its of these statements
- both A and R are true and R is the correct explanation of A
- both a and R are true but "R is not a correct explanation of A
- A is true but R is the false
- a is false but is the true
Question: 3960 Air has dynamic viscosity 1.2 × 10-5 kg/ms. the highest velocity that a rain drop of diameter 0.3 mm can achieve is approximately
- 2.2 m/s
- 3.8 m/s
- 4.1 m/s
- 5.6 m/s
Question: 3961 Consider the following statements
Assertion (A): For underwater communications, sound waves with low frequency are better than those with high frequency
Reason (R): Whenever the sound pressure amplitude exceeds the atmospheric and hydrostatic pressure (acting on water). it sets up eddy and turbulent motions in water of these statements
- both A and R are true and R is the correct explanation of A
- both A and R are true but R is not a correct explanation of A
- A is true but R is false
- A is false but R is true
Question: 3962 Two tuning forks, A and B, give 4 beats per seconds when sounded together. The frequency of A is 320 Hz. When some wax is added to B and sounded with fork, A,4 beats/sec are heard again. The frequency of B(in Hz), is
- 312
- 316
- 324
- 328
Question: 3963 A car is moving towards a fixed wall and sends signal having a frequency of 1000 Hz which is reflected back by a fixed wall and received by a detector in the same car. If the speed of the car is 0.2 V, V being the velocity of sound in air then the frequency (in Hz) as measured by the detector will be
- 833
- 1200
- 1222
- 1500
Question: 3964 A vertical tube of length 1 m and diameter 4 cm is initially filled with water. A tuning fork of frequency 700 Hz is made to sound continuously over the top of the tube while the water is allowed to flow out gradually from the bottom. The highest harmonic that can be excited by this tuning fork is
- ninth
- seventh
- fifth
- third
Question: 3965 A stretched wire of length one meter is in resonance with a tuning fork. If the tension is doubled, then the length of the wire, (in m) at which resonance will take place is
- 0.70
- 1.00
- 1.41
- 2.83
Question: 3966 For image magnifications, one needs at least
- two convex lenses
- one concave and one convex lens
- one concave lens
- one convex lens
Question: 3967 A vertical tube of length 1 m and diameter 4 cm is initially filled with water. A tuning fork of frequency 700 Hz is made to sound continuously over the top of the tube while the water is allowed to flow out gradually from the bottom. The highest harmonic that can be excited by this tuning fork is
- ninth
- seventh
- fifth
- third
Answers to the questions of Physics on this page
Following list gives the correct choice for the answer of the Physics mcqs.
3956 . B
3957 . C
3958 . B
3959 . A
3960 . C
3961 . A
3962 . B
3963 . D
3964 . B
3965 . D
3966 . A
3967 . B
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