Multiple Reflection

Q. Describe the construction of a kaleidoscope.

Q. Which of the following devices make use of the phenomenon of multiple reflection?

1. Kaleidoscope
2. Periscope
3. Spectacles
4. Microscope

Q. Describe the construction of a kaleidoscope.

Q. If you stand in between two plane mirrors facing each other, how many images would be formed?

1. $1$
2. Infinite
3. $2$
4. $50$

Q. Match the number of images formed by two plane mirrors with the corresponding angle between them.

1. 5
2. 2
3. 3
4. 1

Q. Kaleidoscope uses the concept of _____ of light.

1. single reflection
2. multiple reflections
3. refraction
4. dispersion

Q.

Boojho planned activity to observe an object A through pipes as shown in Fig., so that he could see objects which he could not directly see. (a) How many mirrors should he use to see the objects? (b) Indicate the positions of the mirrors in the figure. (c) What must be the angle with respect to the incident light at which he should place the mirrors? (d) Indicate the direction of the rays in the figure. (e) If any of the mirrors are removed, will he be able to see the objects?

Q. When two plane mirrors are parallel to each other, the angle between them is

Q.

State whether the following statement is true or false

The top and bottom faces of a kaleidoscope are congruent.

1. True
2. False

Q. Auses the phenomenon of multiple reflections to create beautiful images.

1. kaleidoscope
2. telescope
3. microscope

Q. When two plane mirrors are parallel to each other, the angle between them is degrees.

1. 180
2. 30
3. 90
4. 0

Q. Auses the phenomenon of multiple reflections to create beautiful images.

1. telescope
2. microscope
3. kaleidoscope

Q. The number of images formed by two plane mirrors parallel to each other is.

1. 1
2. 2
3. 0
4. infinite

Q. When two plane mirrors are parallel to each other, the angle between them is degrees.

1. 30
2. 0
3. 180
4. 90

Q. The number of images formed by two plane mirrors parallel to each other is.

1. 0
2. 2
3. 1
4. infinite

Q. When a person stands between two parallel mirrors facing each other, he will observe infinite images being formed.

1. False
2. True

Q. Optical instruments like the periscope and kaleidoscope use the property of ________ in order to create the final image or images.

1. refractions
2. absorption
3. multiple reflections
4. diffractions

Q. Aimage can be caught on a screen whereas a image cannot be caught on a screen.

1. real
2. virtual
3. magnified
4. diminished

Q. When two plane mirrors are parallel to each other, the angle between them is degrees.

1. 90
2. 180
3. \N
4. 30