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Physics-

General

Easy

Question

A ray falls on a prism ABC(AB=BC) and travels as shown in the figure. The minimum refractive, index of the prism material should be.

$\sqrt{2}$
$\sqrt{3}$
$1.5$
$\frac{4}{3}$

The correct answer is: $square root of 2$

Related Questions to study

Two parallel light rays are incident at one surface of a prism of refractive index 1.5 as shown in figure. What is the angle between the rays as they emerge ?

Two parallel light rays are incident at one surface of a prism of refractive index 1.5 as shown in figure. What is the angle between the rays as they emerge ?

physics-General

$f space left parenthesis x right parenthesis equals t a n to the power of negative 1 end exponent invisible function application x minus x$ is decreasing in

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For such questions, we should know different formulas of differentiation.

The interval of increase of the function $f space left parenthesis x right parenthesis equals x minus e to the power of x plus t a n invisible function application open parentheses fraction numerator 2 pi over denominator 7 end fraction close parentheses$ is

For such questions, we should know different formulas of differentiation.

parallel

In experiment of the potentiometer wire $A B$ of length 100 cm has a resistance of 10 $capital omega$ , It is connected in series with a resistance R and a cell of emf 2 volts and of negligible internal resistance. A Source of emf 10mV is balanced against a length of 40 cm of the potentiometer wire. What is the value of the external resistance?

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physics-General

The function $f space left parenthesis x right parenthesis equals t a n to the power of negative 1 end exponent invisible function application x$ is

For such questions, we should check the rules of increasing and decreasing function.

The function $f space left parenthesis x right parenthesis equals t a n to the power of negative 1 end exponent invisible function application x$ is

For such questions, we should check the rules of increasing and decreasing function.

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If $l to the power of 2 end exponent plus m to the power of 2 end exponent equals 1$ then the maximum value of $l plus m$ is

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In the experiment of potentiometer wire $A B$ is 100 cm long shown in figure When AC=40 cm, no deflection occurs in the galvanometer. What is the value of R ?

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Consider the potentiometer circuit shown. The potentiometer wire is 600 cm long and having restance 15r At what distance from the point A should the jockey touch the wire to get zero deflection in the galvanometer?

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parallel

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