Physics MCQs

A. mercury is a metal

B. density of mercury is greater than that of water

C. cohesion of mercury is greater than its adhesion with glass

D. cohesion of water is greater than its adhesion with glass

A. the full weight of the barrel comes into play when it is pulled

B. the rolling friction is much less than the sliding friction

C. more surface area of the barrel is in contact with the road when it is pulled

D. coal tar is a liquid and it flows in the barrel when it is rolled

A. Cement

B. Glass and Pottery

C. Iron and Steel

D. Electrical

A. Electrons

B. Electromagnetic radiations

C. Alpha particles

D. Neutrons

A. 6.3 x 103 J

B. 6.3 x 10-7 J

C. 3.6 x 103 J

D. 3.6 x 10-3 J

A. move towards A

B. move towards B

C. move at right angles to the line joining A and B

D. remain at rest

A. east

B. west

C. northeast

D. southeast

A. amplitude

B. velocity

C. wavelength

D. frequency

A. Scattering

B. Diffraction

C. Interference

D. Polarization

A. minimum

B. maximum

C. zero

D. minimum or maximum