Tag: light, shadows and reflections

Quizzes (7) Questions (4)

Questions Related to light, shadows and reflections

Multiple choice physics light, shadows and reflections characteristics of an image formed by a plane mirror formation of image in a plane mirror characteristics of the image formed by a plane mirror

A plane mirror is made up of:

  1. a few metre thick glass plate

  2. a few mm thick glass plate

  3. a few cm thick glass plate

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

A plane mirror is made from a few mm thick glass plate. The front part is highly polished and the back part is silvered.

Multiple choice evs light, shadows and reflections characteristics of an image formed by a plane mirror formation of image in a plane mirror characteristics of the image formed by a plane mirror

When the distance between the object and the plane mirror increases :

  1. The image remains same

  2. The size of the image will become less than the size of the object.

  3. The distance between the image and the plane mirror increases

  4. The distance between the image and the plane mirror decreases
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

When the distance between the object and the plane mirror increases because the distance between the image and the plane mirror increases.

Multiple choice evs light, shadows and reflections characteristics of an image formed by a plane mirror formation of image in a plane mirror characteristics of the image formed by a plane mirror

Which of the following are the properties of plane mirror images?

  1. The image is the same size as the object

  2. The image is virtual

  3. The image is inverted

  4. Image distance is equal to object distance
Reveal answer Fill a bubble to check yourself
A,B,D Correct answer
Explanation

In case of a plane mirror, image is virtual, erect, same size as the object and image distance is equal to object distance.

Multiple choice evs light, shadows and reflections characteristics of an image formed by a plane mirror formation of image in a plane mirror characteristics of the image formed by a plane mirror

A point object is placed midway between two plane mirrors a distance apart. The plane mirrors form an infinite number of images due to multiple reflections. The distance between nth order images formed in the two mirrors is

  1. $n a$
  2. $2 n a$
  3. $0.5 n a$
  4. ${ n }^{ 2 }a$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

When an object is placed midway between two parallel mirrors separated by distance 'a', the images are formed at distances 0.5a, 1.5a, 2.5a, etc., from each mirror. The distance between the nth order images is 0.5na.