Physics

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:

The quantities which have the same dimensions as those of solid angle are:

The terminal voltage of the battery, whose emf is 10 V and internal resistance $1\Omega$ , when connected through an external resistance of $4\Omega$  as shown in the figure is:

The graph which shows the variation of $\left(\frac{1}{{\lambda }^2}\right)$ and its kinetic energy, $E$ is (where $\lambda$ is de Broglie wavelength of a free particle):

Consider the following statements A and B and identify the correct answer:

A. For a solar-cell, the I-V characteristics lies in the IV quadrant of the given graph.

B. In a reverse biased  $pn$ junction diode, the current measured in $\left(\mu A\right)$ , is due to majority charge carriers.