Laws of Reflection

Each of these diagrams is supposed to show two different rays being reflected from the same point on the same mirror. Which option is correct :-

The mirrors are perpendicular to each other as shown in figure. A light ray $AB$ is incident on the mirror $M_1$. Then the reflected ray will also suffer a reflection from the mirror $M_2$. Then the final ray after reflection from $M_2$ will be parallel to the incident ray if:

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Consider a glass slab which is silvered at one side and the other side is transparent. Given the refractive index of the glass slab to be $1.5$. If a ray of light is incident at an angle of $45°$ on the transparent side, the deviation of the ray of light from its initial path, when it comes out of the slab is

The first law of reflection states that:

If angle of incidence, $\angle i=45°$. Calculate the angle of reflection $\angle r$.

The figure shows two plane mirrors inclined at $50°$. A ray is incident on one of the mirrors at an arbitrary angle $\alpha$. It gets reflected from this mirror and then from the other mirror.

The angle between the incident ray and the emergent ray is

In the figure given below, PQRS denotes the path followed by a ray of light as it travels through three mediums in succession. The absolute refractive indices of the media are$\mu 1, \mu 2 and \mu 3$ respectively.$(The line segment RS1 in the figure is parallel to PQ).$ Then

A ray of light travels from A to B with uniform speed. On its way it is reflected by the surface. The path followed by ray to take least time is

Back surface of a glass (refractive index $n$ and thickness $t$) is polished to work as a mirror as shown below. A laser beam falls on it and is partially reflected and refracted at the air-glass interface and fully reflected at the mirror surface, respectively. A pattern of discrete spots of light is observed on the screen.

The spacing between the spots on the screen will be

A ray of light is incident towards a plane mirror at an angle of $30°$ with the mirror surface.What will be the angle of reflection?

According to the second law of reflection,angle of _____ is equal to the angle of reflection of light.

According to the second law of reflection, which angles will be equal?

State the second law of reflection?

A ray of light is incident towards a plane mirror at an angle of $30°$ with the mirror surface.What will be the angle of reflection?

A monochromatic beam of light enters a square enclosure with mirrored interior surfaces at an angle of incidence ${\theta }_i=(\ne 0)$ (see the figure below). For some value(s) of ${\theta }_i$, the beam is reflected by every mirrored wall (other than the one with opening) exactly once and exists the enclosure through the same hole. Which of the following statements about this beam is correct?

State the laws of reflection.

A ray of light travelling in the direction $\frac{1}{2}(\hat{\mathrm{i}}+\sqrt{3}\hat{\mathrm{j}})$ is incident on a plane mirror. After reflection, it travels along the direction $\frac{1}{2}(\hat{\mathrm{i}}-\sqrt{3\hat{\mathrm{j}}}).$ The angle of incidence is:

The image of an object $O$ due to reflection from the surface of a lake is elongated due to the ripples on the water surface caused by a light breeze. This is because the ripples act as tilted mirrors as shown below. Consider the case, where $O$ and the observer $E$ are at the same height above the surface of the lake. If the maximum angle that the ripples make with the horizontal is $\alpha$, then the angular extent $\delta$ of the image will be

The phenomenon by which the incident light falling on a surface is sent back into the same medium is known as

A ray of light falls normal to a plane mirror, the reflection angle will be-