Physics

What are the forces acting on a swinging pendulum?

What is the small-angle approximation for a simple pendulum?

In the nuclear emission stated above, the mass number and atomic number of the product $Q$  respectively, are

Given below are two statements:

Statement I: Atoms are electrically neutral as they contain equal number of positive and negative charges.

Statement II: Atoms of each element are stable and emit their characteristic spectrum.

In the light of the above statements, choose the most appropriate answer from the options given below.

A thermodynamic system is taken through the cycle abcda. The work done by the gas along the path $bc$  is:

A horizontal force 10 N is applied to a block $A$ as shown in figure. The mass of blocks $A$ and $B$ are 2 kg and 3 kg respectively. The blocks slide over a frictionless surface. The force exerted by block $A$ on block $B$  is :

The mass of a planet is $\frac{1}{10}$  th that of the earth and its diameter is half that of the earth. The acceleration due to gravity on that planet is:

If $x=5sin\left(\pi t+\frac{\pi }{3}\right)m$  represents the motion of a particle executing simple harmonic motion, the amplitude and time period of motion, respectively, are

The moment of inertia of a thin rod about an axis passing through its mid point and perpendicular to the rod is $2400 g c{m}^2$ . The length of the 400 g rod is nearly:

In the above diagram, a strong bar magnet is moving towards solenoid-2 from solenoid-1. The direction of induced current in solenoid-1 and that in solenoid-2, respectively, are through the directions: