# Q. A light beam of intensity $20 W/cm^2$ is incident normally on a perfectly reflecting surface of sides $25 cm \times 15 cm$. The momentum imparted to the surface by the light per second is

KCETKCET 2020

Solution:

## 1. The condition for a uniform spherical mass m of radius r to be a black hole is [G = gravitational constant and g = acceleration due to gravity]

AIIMS 2005 Gravitation

KCET 2020

KCET 2020

## 4. The charge deposited on 4 $\mu$F capacitor in the circuit is

KCET 2009 Electrostatic Potential And Capacitance

KCET 2020

## 6. The potential to which a conductor is raised, depends on ........

KCET 2005 Electrostatic Potential And Capacitance

KCET 2020

KCET 2020

KCET 2020

## 10. In the circuit shown, the currents $i_1$ and $i_2$ are ___________

KCET 2011 Current Electricity