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Physics-

General

Easy

Question

A ray of light is incident on an equilateral glass prism placed on a horizontal table. For minimum deviation which of the following is true

PQ is horizontal
QR is horizontal
RS is horizontal
Either PQ or RS is horizontal.

The correct answer is: QR is horizontal

In minimum deviation position refracted ray inside the prism is parallel to the base of the prism

Related Questions to study

In the given figure, what is the angle of prism

In the given figure, what is the angle of prism

physics-General

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 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

physics-General

A bob of mass $M$ is suspended by a massless string of length $L$ . The horizontal velocity $V$ at position $A$ is just sufficient to make it reach the point $B$ . The angle $theta$ at which the speed of the bob is half of that at $A$ , satisfies

A bob of mass $M$ is suspended by a massless string of length $L$ . The horizontal velocity $V$ at position $A$ is just sufficient to make it reach the point $B$ . The angle $theta$ at which the speed of the bob is half of that at $A$ , satisfies

Physics-General

parallel

The foot of the perpendicular on the line $3 x plus y equals lambda$ drown from the origin is C if the line cuts the x-axis and y-axis at A and B respectively then BC : CA is

The foot of the perpendicular on the line $3 x plus y equals lambda$ drown from the origin is C if the line cuts the x-axis and y-axis at A and B respectively then BC : CA is

$Q with dot on top subscript p superscript p left parenthesis cos invisible function application a x minus sin invisible function application b x right parenthesis squared$ (where a, b are integers) =

$Q with dot on top subscript p superscript p left parenthesis cos invisible function application a x minus sin invisible function application b x right parenthesis squared$ (where a, b are integers) =

$0 with hat on top subscript 1 superscript 1 fraction numerator sin invisible function application x minus x squared over denominator 3 minus vertical line x vertical line end fraction d x equals$

$0 with hat on top subscript 1 superscript 1 fraction numerator sin invisible function application x minus x squared over denominator 3 minus vertical line x vertical line end fraction d x equals$

parallel

$\int_{- π / 4}^{π / 4} \frac{e^{x} (x \sin x)}{e^{2 x} - 1} d x$ is equal to

$\int_{- π / 4}^{π / 4} \frac{e^{x} (x \sin x)}{e^{2 x} - 1} d x$ is equal to

Let $f : R \to R, f (x) = \{\begin{matrix} | x - [x] |, [x] \\ | x - [x + 1] |, [x] \end{matrix}$ $\begin{aligned} is odd \\ 1 is even where [.] \end{aligned}$ denotes greatest integer function, then $\int_{- 2}^{4} f (x) d x$ is equal to

Let $f : R \to R, f (x) = \{\begin{matrix} | x - [x] |, [x] \\ | x - [x + 1] |, [x] \end{matrix}$ $\begin{aligned} is odd \\ 1 is even where [.] \end{aligned}$ denotes greatest integer function, then $\int_{- 2}^{4} f (x) d x$ is equal to

The value of $\int_{0}^{1} | \sin 2 π x | ∣ d x$ is equal to

The value of $\int_{0}^{1} | \sin 2 π x | ∣ d x$ is equal to

parallel

The value of $integral subscript 0 superscript 100 left curly bracket square root of x right curly bracket d x$ (where {x} is the fractional part of x) is

The value of $integral subscript 0 superscript 100 left curly bracket square root of x right curly bracket d x$ (where {x} is the fractional part of x) is

The shortest distance between the two straight line $fraction numerator x minus 4 divided by 3 over denominator 2 end fraction equals fraction numerator y plus 6 divided by 5 over denominator 3 end fraction equals fraction numerator z minus 3 divided by 2 over denominator 4 end fraction$ and $fraction numerator 5 y plus 6 over denominator 8 end fraction equals fraction numerator 2 z minus 3 over denominator 9 end fraction equals fraction numerator 3 x minus 4 over denominator 5 end fraction$ is

The shortest distance between the two straight line $fraction numerator x minus 4 divided by 3 over denominator 2 end fraction equals fraction numerator y plus 6 divided by 5 over denominator 3 end fraction equals fraction numerator z minus 3 divided by 2 over denominator 4 end fraction$ and $fraction numerator 5 y plus 6 over denominator 8 end fraction equals fraction numerator 2 z minus 3 over denominator 9 end fraction equals fraction numerator 3 x minus 4 over denominator 5 end fraction$ is

A bob of mass M is suspended by a massless string of length L. The horizontal velocity $v$ at position A is just sufficient to make it reach the point B. The angle $θ$ at which the speed of the bob is half of that at A, satisfies

A bob of mass M is suspended by a massless string of length L. The horizontal velocity $v$ at position A is just sufficient to make it reach the point B. The angle $θ$ at which the speed of the bob is half of that at A, satisfies

physics-General

parallel

A piece of wire is bent in the shape of a parabola $y equals k x to the power of 2 end exponent blank left parenthesis y$ -axis vertical) with a bead of mass $m$ on it. The bead can side on the wire without friction. It stays at the lowest point of the parabola when the wire is at rest. The wire is now accelerated parallel to the $x$ -axis with a constant acceleration $a$ . The distance of the new equilibrium position of the bead, where the bead can stay at rest with respect to the wire, from the $y$ -axis is

A piece of wire is bent in the shape of a parabola $y equals k x to the power of 2 end exponent blank left parenthesis y$ -axis vertical) with a bead of mass $m$ on it. The bead can side on the wire without friction. It stays at the lowest point of the parabola when the wire is at rest. The wire is now accelerated parallel to the $x$ -axis with a constant acceleration $a$ . The distance of the new equilibrium position of the bead, where the bead can stay at rest with respect to the wire, from the $y$ -axis is

Physics-General

A point P moves in counter-clockwise direction on a circular path as shown in the figure. The movement of P is such that it sweeps out length $s equals t to the power of 3 end exponent plus 5 comma$ where $s$ is in metre and t is in second. The radius of the path is 20 m. The acceleration of P when t =2s is nearly

A point P moves in counter-clockwise direction on a circular path as shown in the figure. The movement of P is such that it sweeps out length $s equals t to the power of 3 end exponent plus 5 comma$ where $s$ is in metre and t is in second. The radius of the path is 20 m. The acceleration of P when t =2s is nearly

physics-General

The equation of the plane containing the line $fraction numerator x with not stretchy bar on top minus alpha over denominator 1 end fraction equals fraction numerator y minus beta over denominator m end fraction equals fraction numerator z minus gamma over denominator n end fraction text is end text stack a with _ below with _ below left parenthesis x minus alpha right parenthesis plus b left parenthesis y minus beta right parenthesis plus c left parenthesis z minus gamma right parenthesis equals 0$ where al + bm + cn is equal to

The equation of the plane containing the line $fraction numerator x with not stretchy bar on top minus alpha over denominator 1 end fraction equals fraction numerator y minus beta over denominator m end fraction equals fraction numerator z minus gamma over denominator n end fraction text is end text stack a with _ below with _ below left parenthesis x minus alpha right parenthesis plus b left parenthesis y minus beta right parenthesis plus c left parenthesis z minus gamma right parenthesis equals 0$ where al + bm + cn is equal to

parallel

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