List of top Physics Questions on Reflection and Refraction

Value of critical angle is maximum for light travelling from:

If an object is placed at a distance of $12,cm$ from a thin lens of power $5D$, then the distance of the image from the lens with proper sign convention is

The phenomenon of total internal reflection occurs when a ray of light travels from

If \( I = 16 \, \text{A} \), electron density \( n = 5 \times 10^{23} \, \text{m}^{-3} \), and \( A = 1 \times 10^{-7} \, \text{m}^2 \), find the drift velocity.

A convex lens forms a real image of an object with magnification \(m_1\). The lens is moved towards the object to obtain another real image of magnification \(m_2\). The image distance is increased by \(x\). The focal length of the lens is

One surface of a lens is convex and the other is concave. If the radii of curvatures are \(R\) and \(r\) respectively, the lens will be convex if

A symmetric double convex lens is cut into two equal parts by a plane perpendicular to the principal axis. If the power of the original lens is \(4D\), the difference between the powers of the original lens and the cut lens is

Two light rays A and B travel from a medium into air at angles of incidence 15 degrees and 42 degrees respectively. In the medium, light travels 3 cm in 0.2 ns. Will there be total internal reflection? If so, which ray?

A plane wave front is incident on a thin prism, thin convex lens and a concave mirror separately. The wave front(s) emerging out from the