# CBSE Class 10th Practice Paper – Physics (Science)

Oct 19, 2015 18:14 IST

Find  the CBSE Class 10th MCQs Practice Paper – Physics (Science) with answer keys. These questions will not only help the students to prepare for exams in a better manner, but will also help them in understanding the depth with which a topic should be studied.

Few sample questions from the Question Paper are given below:

Q. An ammeter, a device used to measure the electric current flowing through a circuit, should have very low resistance so that:

(a) More of the electric current may pass through it

(b) It does not change the value of electric current flowing through the circuit

(c) It does not get heated up

(d) It does not alter the value of potential difference across the circuit

Q. The air pollution caused by burning petroleum fuels in vehicles can be checked by fitting the vehicles with:

(a) Electrostatic precipitators

(b) Electrostatic converters

(c) Catalytic detectors

(d) Catalytic converters

Q. A freely suspended bar magnet does not point towards the exact geographical north and south because:

(a) The earths’ magnetic axis causes a repulsuion

(b) The earths’ geographical axis causes a repulsuion

(c) The earth is tilted on its axis

(d) The earth’s magnetic axis is inclined at a certain angle with the geographical axis.

Q. A 2.5 cm tall object is placed at a certain distance in front of a convex lens of focal length f. The image of the object is formed behind the lens also measures 2.5 cm and is at the same distance behind the lens as that of the object infront of the lens. The object would be placed:

(a) At f

(b) At 2f

(c) Beyond 2f

(d) Between f and 2f

Q. Sun appears red in colour during the time of sunset and sunrise because at this time the light from sun has to travel:

(a) Longer distance through the earth’s atmosphere.

(b) Shorter distance through the earth’s atmosphere.

(c) Along the horizon.

(d) Through varying thickness of the earth’s atmosphere.

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