1000+ Physics Objective Questions and Answers Pdf - 1

Question: 1

Sound waves do not exhibit the phenomenon of

(A) diffraction

(B) interference

(C) polarisation

(D) refraction

Question: 2

No force is exerted by magnetic field on a stationary

(A) current loop

(B) magnetic dipole

(C) electric dipole

(D) none of these

Question: 3

No force is exerted by magnetic field on a stationary

(A) current loop

(B) magnetic dipole

(C) electric dipole

(D) none of these

Question: 4

When a charged particle enters a uniform magnetic field its kinectic energy?

(A) becomes zero

(B) decreases

(C) increases

(D) remains constant

Question: 5

Which of the following is most suitable for the core of an electromagnet?

(A) air

(B) steel

(C) soft iron

(D) none of these