Physics is the science that studies the nature and properties of matter and energy. It covers topics like motion, heat, light, sound, electricity, magnetism, and the structure of atoms.
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Question 1001: The stylus of a phonograph record exerts a force of 7.7 x 10-2N on a groove of radius 10-5m. Compute the pressure exerted by the stylus on the groove
Options:
A) 2.45 x 108 Nm-2
B) 3.45 x 108 Nm-2
C) 4.90 x 108 Nm-2
D) 2.42 x 108 Nm-2
Show Answer
The correct answer is A .
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Question 1002: A simple cell with mercury-amalgamated zinc electrode prevents
Options:
A) local actions
B) polarization
C) buckling
D) degradation
Show Answer
The correct answer is A .
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Question 1003: A reservoir 500 m deep is filled with a fluid of density 850 kgm-3. If the atmospheric pressure is 1.05 x 105 Nm-2, the pressure at the bottom of the reservoir is.
[g = 10ms-2]
Options:
A) 4.72 x 106 Nm-2
B) 4.36 x 106 Nm-2
C) 4.28 x 106 Nm-2
D) 4.25 x 106 Nm-2
Show Answer
The correct answer is D .
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Question 1004:
If a source of solid is moving, a stationary listener will hear a sound of different frequency. This is called?
Options:
A) doppler effect
B) resonance
C) ultra sound
D) rarefaction
Show Answer
The correct answer is A .
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Question 1005: In what range of temperature is the expansion of water anomalous?
Options:
A) +208oC to +212oC
B) -80oC + -76oC
C) -4oC to 0oC
D) +96oC to +100oC
E) 0oC to +4oC
Show Answer
The correct answer is E .
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Question 1006: The atmospheric pressure due to water is 1.3 x 106Nm-2. What is the total pressure at the bottom of an ocean 10m deep? [Density of water = 1000kgm-3, g = 10ms-2]
Options:
A) 1.3 x 107Nm-2
B) 1.4 x 106Nm-2
C) 1.4 x 105Nm-2
D) 1.0 x 10 5Nm-2
Show Answer
The correct answer is B .
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Question 1007: The point beyond which a stretched spring does not return to its original length is called the
Options:
A) breaking point
B) elastic limit
C) spring constant
D) elasticity point
E) release point
Show Answer
The correct answer is B .
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Question 1008:
The velocities of light in air and glass are 3.0 x 10ms and 2.0 x 10ms respectively. If the angle of refraction is 30º, the sine of the angle of incidence is?
Options:
A) 0.33
B) 0.50
C) 0.67
D) 0.75
Show Answer
The correct answer is D .
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Question 1009:

If the system above is in equilibrium, the tension in the string Q is
Options:
A) 11N
B) 9N
C) 4N
D) 6N
Show Answer
The correct answer is B .
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Question 1010: If an object is placed in front of two mirrors inclined at 90o, how many images will be formed?
Options:
A) five
B) four
C) three
D) two
Show Answer
The correct answer is C .