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3 years ago

For minimum deviation inside the prism the angle of emergence should be equal to

Physics

2 answers:

Sauron [17]3 years ago

6 0

Explanation:

When a ray of light suffers minimum deviation through prism, angle of incidence is equal to the angle of emergence. Ray of light passing through the prism will be parallel to the base of the prism. Angle of refraction inside the material of the prism is half the angle of the prism.

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dalvyx [7]3 years ago

4 0

Answer:

Originally Answered: Why should angle of incidence be equal to angle of refraction for minimum deviation in a triangular glass prism? The angle of incidence is equal to angle of refraction only if the angle od deviation is 0.

Explanation:

not sure but 

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A ball is droped from a height of 16m how much time will pass before the ball hits the ground

sergey [27]

Answer:

The time is 1.8s

Explanation:

The ball droped, will freely fall under gravity.

Hence we use free fall formula to calculate the time by the ball to hit the ground

$h= \frac{1}{2}g{t}^{2}$

Where h is the height from which the ball is droped, g is the acceleration due to gravity that acted on the ball, and t is the time taken by the ball to hit the ground.

From the question,

h=16m

Also, let take

$g = 9.8m{s}^{-2}$

By substitution we obtain,

$16= \frac{1}{2}\times 9.8{t}^{2}$

$\implies32=9.8{t}^{2}$

Diving through by 9.8

$\frac{32}{9.8}= \frac{ 9.8{t}^{2} }{9.8}$

$\implies{t}^{2} =3.265$

square root both sides, we obtain

$\implies t= \sqrt{3.265}$

$t=1.8s$

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4 years ago

Which of the following gases are the heaviest? O2, CH4, CO2, Cl2

kvasek [131]

the answer is

CI2 because its 70.

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4 years ago

1) An ice skater with a moment of inertia of 2.2 kg m^2 rotates at a frequency of 0.8 rotations per second. The ice skater tucks

trapecia [35]

Answer:

Explanation:

2.3 kg·m/s²

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3 years ago

An object is propelled along a straight-line path by a force. If the new force were doubled, is acceleration would

Aneli [31]

Still go straight but would obviously go up in speed!!

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6 0

3 years ago

Read 2 more answers

Show all work.

lys-0071 [83]

The new gravitation force at the new location is 40 N

Explanation:

The weight of the astronaut is given by the equation

$F=mg$ (1)

where

m is the mass of the astronaut

g is the acceleration of gravity

The acceleration of gravity at a certain distance $r$ from the centre of the Earth is given by

$g=\frac{GM}{r^2}$

where G is the gravitational constant and M is the Earth's mass. So we can rewrite eq.(1) as

$F=\frac{GMm}{r^2}$

When the astronaut is on the Earth's surface, $r=R$ (where R is the Earth's radius), so his weight is

$F=\frac{GMm}{R^2}=640 N$

Later, he moves to another location where his distance from the Earth's surface is 3 times the previous distance, so the new distance from the Earth's centre is

$r'=3R+R=4R$