A plane mirror forms an image that is:
- Real and Inverted
- Virtual and Inverted
- Real and Upright
- Virtual and Upright
The image formed by a plane mirror is ___in size to the object.
- Smaller
- Larger
- Different
- Same
A Periscope uses two plane mirrors one above the other at:
- 30°
- 45°
- 60°
- 90°
A ___ is used in submarines to monitor the surface of water.
- Periscope
- Telescope
- Kaleidoscope
- Binoculars
Which instrument among the following is used for observing multiple images of objects?
- Periscope
- Kaleidoscope
- Telescope
- Microscope
Kaleidoscope operates on the principle of multiple reflections, where several mirrors are placed at an angel to one another:
- 60°
- 45°
- 30°
- 15°
A mirror which has a reflecting surface that curves inwards like the front side of the spoon is called:
- Convex Mirror
- Concave Mirror
- Plane Mirror
- Parabolic Mirror
A mirror which has a reflecting surface that bulges outwards like the back side of the spoon is called:
- Concave Mirror
- Plane Mirror
- Convex Mirror
- Parabolic Mirror
When an object is placed very close to a concave mirror its image will be?
- Virtual
- Upright
- Larger in size than the object
- All of these
When an object is placed far away from the concave mirror its image will be?
- Real
- Inverted
- Smaller in size than the object
- All of these