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: A car of mass 800kg attains a speed of 25m/s in 20 secs. The power developed in the engine is
Options:
A) 1 . 25 x 104 W
B) 2 . 50 x 104 W
C) 1 . 25 x 106W
D) 2 . 50 x 106 W
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The correct answer is B .
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Question 1002: Which of the following phenomena explains the formation of a mirage? i. Reflection ii. Refraction iii. Diffraction
Options:
A) i and ii only
B) ii and iii only
C) i and iii only
D) i, ii, and iii only
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The correct answer is A .
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Question 1003: A man clapping his hands at regular intervals observes that the echo of a clap coincides with the next clap. If the reflecting cliff is 160m away and the speed of sound is 320ms-1, what is the frequency of the clapping?
Options:
A) 1 Hz
B) 2Hz
C) 4Hz
D) 8Hz
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The correct answer is A .
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Question 1004: A radioactive sample initially contains N atoms. After three half-lives the number of atoms that have disintegrated is
Options:
A)
B)
C)
D)
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The correct answer is A .
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Question 1005: Two lamps are rated 40W and 220V each are connected in series. The total power dissipated in both lamps is
Options:
A) 10W
B) 20W
C) 40W
D) 80W
E) None of the above
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The correct answer is D .
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Question 1006:
The eclipse of the moon occurs when?
Options:
A) the moon reflects the rays from the sun to the earth
B) the moon comes exactly between the earth and the sun
C) the earth comes exactly between the moon and the sun
D) the sun comes exactly between the earth and the moon
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The correct answer is C .
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Question 1007:
If an object just begins to slide on a surface inclined at 30ºto the horizontal,the coefficient of friction is?
Options:
A) √3
B)
C)
D)
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The correct answer is D .
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Question 1008:

Three cells each of e.m.f 1.5 V and internal resistance 2.5Ω are connected as shown in the diagram above. Find the net e.m.f and the internal resistance
Options:
A) 1.5V, 7.50Ω
B) 1,5V, 0.83Ω
C) 4.5V, 7.50Ω
D) 4.5V, 0.83Ω
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The correct answer is B .
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Question 1009: A particle in circular motion performs 30 oscillation in 6 seconds. Its angular velocity is
Options:
A) 5 rad s-1
B) 6 rad s-1
C) 5π rad s-1
D) 10π rad s-1
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The correct answer is D .
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Question 1010: The force with which an object is attracted to the earth is called its
Options:
A) acceleration
B) mass
C) gravity
D) impulse
E) weight
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The correct answer is E .