A given ray of light suffers minimum deviation in an equilateral … - Vidyadip

MCQ

A given ray of light suffers minimum deviation in an equilateral prism $P$. Additional prisms $Q$ and $R$ of identical shape and material are now added to $P$ as shown in the figure. The ray will suffer

A
Greater deviation
✓
Same deviation
C
No deviation
D
Total internal reflection

✓

Answer

Correct option: B.

Same deviation

b
(b) As the prisms $Q$ and $R$ are of the same material and have identical shape they combine to form a slab with parallel faces. Such a slab does not cause any deviation.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

An electric dipole is placed in non-uniform electric field. It may experience

Dimensions of the following three quantities are the same

An electron enters a chamber in which a uniform magnetic field is present as shown below. An electric field of appropriate magnitude is also applied, so that the electron travels undeviated without any change in its speed through the chamber. We are ignoring gravity. Then, the direction of the electric field is

Assertion : A laminated core is used in transformers to increase eddy currents.

Reason : The efficiency of a transformer increases with increase in eddy currents.

A wire of length $1\, m$ is perpendicular to $x -y$ plane. It is moved with velocity $\vec{v}=(3 \hat{i}+3 \hat{j}+2 \hat{k}) m / s$ through a region of uniform induction $\vec{B}=(\hat{i}+2 \hat{j}) T$. The potential difference between the ends of the wire is (in $V$)

An electrostatic field in a region is radially outward with magnitude $E$ = $\alpha r$ , where $\alpha $ is a constant and $r$ is radial distance. The charge contained in a sphere of radius $R$ in this region (centred at the origin) is

A capillary type tube $AB$ is connected to a manometer $M$ as shown in the figure. Stopper $S$ controls the flow of air. $AB$ is dipped into a soap solution where surface tension is $T$ . On opening the stopper for a while, a bubble is formed at $B$ end of the manometer and the level difference in manometer limbs is $h$ . If $P$ is the density of manometer soap solution and $r$ the radius of curvature of bubble, then the surface tension $T$ of the liquid is given by ...

After absorbing a slowly moving neutron of mass $m_N$ $(momentum $~ $0)$ a nucleus of mass $M$ breaks into two nuclei of masses $m_1$ and $3m_1$ $(4m_1 = M + m_N)$, respectively. If the de Broglie wavelength of the nucleus with mass $m_1$ is $\lambda$, then de Broglie wavelength of the other nucleus will be

An optical fibre consists of core of $\mu_1$ surrounded by a cladding of $\mu_2$ < $\mu_1$. A beam of light enters from air at an angle $\alpha$ with axis of fibre. The highest $\alpha$ for which ray can be travelled through fibre is

A telescope has an objective lens of $10\; m$ diameter and is situated at a distance of one kilometre from two objects. The minimum distance between these two objects, which can be resolved by the telescope, when the mean wavelength of light is $5000 \;\mathring A$, is of the order of