Physics Questions

Q:

The material used in electric heater is

A) Tungsten B) Nichrome
C) Brass D) Steel
 
Answer & Explanation Answer: B) Nichrome

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Q:

The side mirrors of vehicles are of which type of mirrors?

A) Convex B) Concave
C) Plane D) Inverted
 
Answer & Explanation Answer: A) Convex

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Q:

If an object moves in a circular path with uniform ________, its motion is called uniform circular motion.

A) speed B) Time
C) Velocity D) Acceleration
 
Answer & Explanation Answer: A) speed

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Q:

Kelvin (K) is the unit of measurement of ________.

A) Density B) Pressure
C) Mass D) Temperature
 
Answer & Explanation Answer: D) Temperature

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Q:

Which one among the following is not an electro­magnetic wave?

A) X­-Ray B) R­-Ray
C) Cathode Ray D) Infrared Ray
 
Answer & Explanation Answer: C) Cathode Ray

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Q:

Find the position of the image formed by a concave mirror when the object is placed between P and F?

A) At infinity B) Between F and C
C) Behind the mirror D) Beyond C
 
Answer & Explanation Answer: C) Behind the mirror

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Q:

A galvanometer can be converted to a voltmeter by connecting

A) a high resistance in parallel B) a high resistance in series
C) a low resistance in series D) a low resistance in parallel
 
Answer & Explanation Answer: B) a high resistance in series

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Q:

A car accelerates uniformly from 18 kmph to 72 kmph in 5 s. The acceleration of the car (in m/sq.s) is:

A) 3 B) 5
C) 6 D) 7
 
Answer & Explanation Answer: A) 3

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