DEB STUDY - The Competitive Exam Guide

Physics MCQs For UPSC(NDA/NA) Exam UPSC NDA/NA PHYSICS MCQ  Q.1 Which one of the following is correct? Lightning is formed, when (a) similar charges of electricity rush towards each other and then get repelled (b) cloud strike against impurities in air and the friction burns up these impurities (c) strong opposite charges in different clouds break down the resistance offered by intervening air (d) water vapour produces electricity in the cloud 

Physics MCQs For UPSC(NDA/NA) Exam UPSC NDA/NA PHYSICS MCQ Q.1 When an optician prescribes a -5 D lens, what does it mean? (a) concave lens of 20 cm focal length (b) convex lens of 20 cm focal length (c) concave lens of 5 cm focal length (d) convex lens of 5 cm focal length

Physics MCQs For UPSC(NDA/NA) Exam UPSC NDA/NA PHYSICS MCQ Q.1 A long jumper runs before jumping because the he (a) covers a greater distance (b) maintains momentum conservation (c) gains energy by running (d) gains momentum

Physics MCQs For UPSC(NDA/NA) Exam UPSC NDA/NA PHYSICS MCQ Q.1 The audible frequency range of a human ear is (a) 20 Hz to 200 Hz (b) 2 Hz to 20 Hz (c) 200 Hz to 2000 Hz (d) 20 Hz to 20000 Hz

Physics MCQs For UPSC(NDA/NA) Exam UPSC NDA/NA PHYSICS MCQ Q.1 Which one of the statements given below is not correct? (a) a vertical plane passing through the axis of the freely suspended magnet is called the magnetic meridian (b) a vertical plane passing through the axis of rotation of the Earth is called the geographical meridian (c) The degree to which the magnetic field can penetrate a medium is known as the relative permeability of the medium (d) the relative permeability is not a dimensionless quantity

Physics MCQs For UPSC(NDA/NA) Exam UPSC NDA/NA PHYSICS MCQ Q.1 A man is sitting on a rotating stool with his arms outstretched. If suddenly he folds his arms the angular velocity of the man would (a) increase (b) decrease (c) become zero (d) remain constant

Physics MCQs For UPSC(NDA/NA) Exam UPSC NDA/NA PHYSICS MCQ Q.1 The speed of sound is maximum in  (a) wood (b) Air at zero degree C (c) Air at 100 degree C (d) Water

Physics MCQs For UPSC(NDA/NA) Exam UPSC NDA/NA PHYSICS MCQ Q.1 Which one among the following statements is not correct? (A) in progressive waves, the amplitude may be constant and neighbouring points are out of phase with each other (B) in air or other gases, a progressive antinode occurs at a displacement node and a progressive node occurs at a displacement antinode (C) transverse wave can be polarised while longitudinal wave can not be polarised (D) longitudinal wave can be polarised  while transverse wave can not be polarised

Physics MCQs For UPSC(NDA/NA) Exam UPSC NDA/NA PHYSICS MCQ  Q.1 Which one among the following is the correct value of the gravitational force of the Earth acting on a body of mass 1 kg? (A) 8.9 N (B) 9.8 N (C) 89 N (D) 98 N

Physics MCQs For UPSC(NDA/NA) Exam UPSC NDA/NA PHYSICS MCQ Q.1 The mirror used for the head light of a car is (A)spherical concave (B)plane (C)cylindrical (D)parabolic concave

 Physics MCQs For UPSC(NDA/NA) Exam UPSC NDA/NA PHYSICS MCQ Q.1  A force F is applied on a body (which moves on a straight line ) for a duration of 3 s. The momentum of the body changes from 10 g cm/s to 40 g cm/s. The magnitude of the force F is - (a) 10 dynes. (b) 10 N. (c) 120 dynes. (d) 12 dynes.

Physics MCQs For UPSC(NDA/NA) Exam  UPSC NDA/NA MCQ Q.1.  The weight of an object may be assigned using Newton's - (a) first law of motion. (b) second law of motion. (c) third law of motion. (d) laws of gravitation. Ans. (d)

PHYSICS OBJECTIVE Q&A FOR UPSC (NDA/NA) EXAM UPSC NDA/NA PHYSICS MCQ  Q.1 A bar magnet is placed inside a uniform magnetic field. What does it experience? (a) a force (b) a torque (c) both a force and a torque (d) neither a force nor a torque

PHYSICS OBJECTIVE Q&A FOR UPSC (NDA/NA) EXAM ------------------------------------------------------------------------------------------------------ FOR PREVIOUS SET, CLICK HERE 👈 ------------------------------------------------------------------------------------------------------ UPSC NDA/NA PHYSICS MCQ Q.1 A pendulum clock is set to give correct time at the sea level. The clock is moved to a hill station at an altitude h above sea level. In order to keep correct time on the hill station which one of the following adjustments is required ? (a) the length of the pendulum has to be reduced (b) the length of the pendulum has to be increased (c) the mass of the pendulum has to be increased (d) the mass of the pendulum has to be reduced

PHYSICS OBJECTIVE Q&A FOR UPSC (NDA/NA) EXAM ------------------------------------------------------------------------------------------------ FOR PREVIOUS SET, CLICK HERE ------------------------------------------------------------------------------------------------ UPSC NDA/NA PHYSICS MCQ Q.1 The wavelength of X-rays is of the order of  (a) 1 mm (b) 1 cm (c) 1 micron (d) 1 Armstrong

PHYSICS OBJECTIVE Q&A FOR UPSC (NDA/NA) EXAM -------------------------------------------------------------------------------------------- FOR PREVIOUS SET, CLICK HERE 👈 -------------------------------------------------------------------------------------------- UPSC NDA/NA PHYSICS MCQ Q.1 How many sixty watt (60 W) bulbs may be safely used in a 240 V supply with 4 A fuse? (a) 4 (b) 8 (c) 12 (d) 16

PHYSICS OBJECTIVE Q&A FOR UPSC (NDA/NA) EXAM ----------------------------------------------------------------------------------------- FOR PREVIOUS SET, CLICK HERE ----------------------------------------------------------------------------------------- UPSC NDA/NA PHYSICS MCQ Q.1 A pendulum beats faster than a standard pendulum. In order to bring it to the standard beat, the length of the pendulum is to be (a) reduced (b) increased (c) reduced and the mass of the bob increased (d) reduced and also the mass of the bob reduced

PHYSICS OBJECTIVE Q&A FOR UPSC (NDA/NA) EXAM ------------------------------------------------------------------------------------------------ FOR PREVIOUS SET, CLICK HERE 👈 ------------------------------------------------------------------------------------------------ UPSC NDA/NA PHYSI CS MCQ Q.1 Sound moves with higher velocity , if (a) pressure of the medium is decreased (b) temperature of the medium is increased (c) humidity of the medium is increased  (d) both b and c

PHYSICS OBJECTIVE Q&A FOR UPSC (NDA/NA) EXAM ---------------------------------------------------------------------------------------------------------- FOR PREVIOUS SET, CLICK HERE 👈 ---------------------------------------------------------------------------------------------------------- UPSC NDA/NA PHYSICS MCQ Q.1 The lines of force of uniform magnetic field (a)Must be convergent (b)Must be divergent (c)Must be parallel to each other (d)Intersect

PHYSICS OBJECTIVE Q&A FOR UPSC (NDA/NA) Exam --------------------------------------------------------------------------------------------------------- FOR PREVIOUS SET, CLICK HERE --------------------------------------------------------------------------------------------------------- UPSC NDA/NA PHYSICS MCQ Q.1 Two copper wires A and B of lenght L and 2 L respectively, have the same area of cross-section.  The ratio of the resistivities of wires A to the B is