Physics Questions

Q:

The complete form of 'IC' in electronics is

A) Internal circuit B) Independent circuit
C) Integrated circuit D) Inbuilt circuit
 
Answer & Explanation Answer: C) Integrated circuit

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Q:

Find the potential energy gained by a body of mass 25 kg, if it is raised by 5 m. (use g = 10 m/s2)

A) 1250 B) 50
C) 625 D) 25
 
Answer & Explanation Answer: A) 1250

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Q:

What is the effective resistance (in Ω) of two resistors 12 Ω and 24 Ω connected in parallel?

A) 36 B) 8
C) 16 D) 72
 
Answer & Explanation Answer: B) 8

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Q:

Calculate the work done by the force of gravity when a satellite moves in an orbit of radius 40,000 km around the earth.

A) 8,000 J B) 4,00,000 J
C) 0 J D) 4,000 J
 
Answer & Explanation Answer: C) 0 J

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Q:

If two coulomb of charge flows through any cross-section of a conductor in one second, what will be the current flowing through it?

A) 1 Ampere B) 1/2 Ampere
C) 1/4 Ampere D) 2 Amperes
 
Answer & Explanation Answer: D) 2 Amperes

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Q:

The phenomenon of change in direction of light when it passes from one medium to another is called

A) Propagation B) Reflection
C) Refraction D) Dispersion
 
Answer & Explanation Answer: C) Refraction

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Q:

The kinetic energy of a ball weighing 0.5 kg moving with a velocity of 4 m/s will be

A) 16 J B) 4 J
C) 8 J D) 12 J
 
Answer & Explanation Answer: B) 4 J

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Q:

Which of the following devices converts Chemical energy into Electrical energy?

A) Electric heater B) Electric fan
C) Hair dryer D) Electric cell
 
Answer & Explanation Answer: D) Electric cell

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