List of top Physics Questions

If \( \frac{C_p}{C_v} \) is unity for a process, \( PV^{\gamma} = \text{constant} \), then the process is:
Band gap energy of Si is:
The ratio of frequency of the 3rd mode of vibration for the closed organ pipe and the open pipe of length \( L \)?
If a bar magnet is doped into a circular ring placed horizontally, then what change will happen?
Which of the following is incorrect?
If fringe width obtained in a YDSE is 1.3mm. If the whole system is dipped in a liquid of refractive index 1.3, then the new fringe width will be:
What is the work done to stretch a string?
Find the pressure on an air bubble of radius \( r \) at a height \( h \) from the surface of the water.
Acceleration of the freely falling metal rod in a cycling ring?
An equiconvex lens of power P is cut perpendicular to its principal axis, into 2 equal parts, power of each part?
Three forces are acting on a particle in which \( F_1 \) and \( F_2 \) are perpendicular. If \( F_1 \) is removed, find the acceleration of the particle.
What is the ratio of gyration of ring and disc?
When a body is dropped from height H, the time taken to reach the ground is T. What is the time taken to reach height H/2 from the ground?
Metal in Wilkinson's catalyst?
Relation between \(C_p\), \(C_v\) and \(R\)
A coil of length \(l\) and area of cross-section \(A\) has resistance \(R\). If the length is increased to 3 times and area decreases to \(A/3\), then the new resistance is:
If the threshold wavelength of a metal is in the green light region, then which of the following radiation cannot cause emission of electrons from metal?
Monochromatic light passing through a prism doesn't produce:
What is the speed of water flowing through a hole located at a depth \(h\) from the surface of water in a tank?
Vibration of atoms and molecules produce electromagnetic radiation in the region of:
Area under \(F\) and \(t\) graph is?
A ball of mass 10g is dropped from a height of 50m. If 30J energy is lost due to air resistance, then what is the velocity of the ball when it hits the ground?
Find the magnification of a lens having focal length 5 cm (Least distance of distinct vision = 25 cm).
Specific heat capacity of diatomic gas at constant volume:
A body is rotated about a fixed axis. Which of the following is correct about angular velocity?