Assertion Two similar trains are moving along the equatorial line with the same speed but in opposite direction. They will exert equal pressure on the rails. 
Reason In uniform circular motion the magnitude of acceleration remains constant but the direction continuously changes.

 

1.  Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
2.  Both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.
3.  Assertion is true but Reason is false.
4.  Assertion is false but  Reason is true.

Assertion A table cloth can be pulled from a table without disloading the dishes. 

Reason To every action there is an equal and opposite reaction.

Assertion Soft steel can be made red hot by continued hammering on it, but hard steel cannot. 

Reason Energy transfer in case of soft is large as in hard steel.

Assertion The center of mass of an electron and proton, when released moves faster towards proton. 

Reason Proton is heavier than the electron.

Assertion A planet moves faster, when it is closer to the sun in its orbit and vice-versa. 

Reason Orbital velocity in orbit of planet is constant.

Assertion A large force is required to drawn apart normally two glass plates enclosing a thin water film. 

Reason Water works as glue and sticks two glass plates.

Assertion The water rises higher in a capillary tube of small diameter than in the capillary tube of large diameter. 

Reason Height through which liquid rise in capillary tube inversely proportional to the the capillary tube.

Assertion A thermoelectric refrigerator is based on the Peltier effect. 

Reason A thermocouple may be used as a radiation detector.

Assertion The pattern and position of fringes always remain same even after the introduction of transparent medium in a path of one of the slit. 

Reason The central fringe is bright or dark depends upon the initial phase difference between the two coherence sources.