Home
Class 11
PHYSICS
(A): The method of dimensions cannot be ...

(A): The method of dimensions cannot be used to obtain the dependence of work done by a force when the force is inclined to the direction of displacement.
(R): All trigonometric functions are dimensionless.

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

Both (A) and (R) are false

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

How is work done by a force measured when the force : is in the direction of displacement.

How is work done by a force measured when the force : is at an angle of displacement

What is the work done by a force when the force is: Normal to the displacement produced.

Write an expression for the work done when a force is acting on an object in the direction of its displacement.

How is the work done by a force measured when (i) force is in the direction of displacement, (ii) force is at an angle to the direction of displacement ?

Assertion :- Work done is positive when force acts in the direction of displacement. Reason :- Work done by frictional force can not be positive.

When work done by force of gravity is negative, then

When is the work done by a force is positive and when is it negative ?

The more the force is applied on a body to cause displacement, the more is the work done.

Find out the work done when a force of 30 N displaces a body through 8 m in the direction of the applied force.