Tag: laws of reflection

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Questions Related to laws of reflection

Multiple choice physics reflection of light and shadow terms related with reflection terms related to reflection of light laws of reflection

Who amongst the following used corpuscular theory to explain reflection and refraction of light ?

  1. Newton

  2. Maxwell

  3. Young

  4. Hertz
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Newton used corpuscular theory to explain reflection and refraction of light. According to Sir Isaac Newton's Corpuscular Theory a luminous body continuously emits tiny, light and elastic particles called corpuscles in all directions. When these particles fall on the retina of the eye, they produce the sensation of vision.


This theory could explain a number of phenomena concerning light like rectilinear propagation, reflection and refraction. Reflection was explained by assuming that the corpuscles which fall on a smooth surface would bounce back like rubber balls hitting a wall. When this theory was used to explain refraction scientists found that the velocity of light in a denser medium would be more than that in a rarer medium.

Multiple choice physics reflection of light and shadow terms related with reflection terms related to reflection of light laws of reflection

A perpendicular drawn at the point of incidence of a light ray on the surface of a mirror is called -

  1. incident ray

  2. reflected ray

  3. normal

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Normal is perpendicular drawn to the surface at the point of incidence so that angle between incident ray and normal is angle of incidence.

Multiple choice physics reflection of light and shadow terms related with reflection terms related to reflection of light laws of reflection

When light moving in one medium falls at the surface of another medium, _______ light returns back to the same medium.

  1. all of

  2. a part of

  3. no

  4. either all or no

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Light moving in one medium when falls at the surface of another medium, part of light returns to the same medium. Some part is transmitted and the rest is absorbed.  No material is a perfect reflector. Almost all surfaces absorb some part of light.

Multiple choice physics reflection of light and shadow terms related with reflection terms related to reflection of light laws of reflection

When a beam of light, from an object, appears to meet at a point after reflection from a mirror, then the image formed is known as :

  1. real image

  2. virtual image

  3. incident image

  4. all of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

According to definition, when a beam of light appears to meet at a point, after reflection, from a mirror then the image formed is known as virtual image. It cannot be obtained on a screen.

Multiple choice physics reflection of light and shadow terms related with reflection terms related to reflection of light laws of reflection

One feature of image formed by plane mirrors is lateral inversion which means:

  1. the top part of the image appears downward and vice versa

  2. left and right sides of the image are interchanged

  3. image appears inverted both sideways and upside down

  4. all the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When a mirror forms an image, the left and right sides of the image are interchanged. This phenomenon is called lateral inversion as the image is laterally inverted.