Write any two uses of the following:
i) Plane mirror
ii) Convex mirror
iii) Concave mirror
iv) Convex lens
v) Concave lens
(Class 7 Science)
Answers
Answer:
(i) Uses of plane mirrors
• Plane mirrors are commonly used as looking glass
• Used in making periscopes which is used in submarines.
• Uses as blind turns of some busy roads, to see the vehicles coming from other side.
• They are used to make kaleidoscope.
(ii) Uses of concave mirrors
• Used in torches, search-lights and vehicles headlights to get powerful parallel beams of light.
• Used as shaving mirrors to see larger image of the face.
• Dentists use concave mirror to see large images of the teeth.
• Large concave mirrors are used to concentrate sunlight to produce heat in solar furnaces.
(iii) Uses of convex mirrors
Answer:
Uses of Plane Mirror :
- They are used as looking glass.
- They are used in solar cookers.
- They are also used in constructing periscope which is used in submarines.
- They are also used to make kaleidoscope, a toy which produces beautiful patterns.
- They are also used in various scientific instruments.
Uses of convex Mirror :
- Inside buildings. You might have noticed that large office buildings, stores, hospitals, and other many other buildings have convex mirrors in the corners. ...
- Sunglasses. We might have used sunglasses many times. ...
- Vehicle mirrors. ...
- Magnifying glasses. ...
- For security purposes. ...
- Street light reflectors.
Uses of concave Mirror:
- Uses Of Concave Mirror
- Shaving mirrors.
- Head mirrors.
- Ophthalmoscope.
- Astronomical telescopes.
- Headlights.
- Solar furnaces.
Uses of convex lens:
- Concave Lens Uses. Telescope and BinocularsSpectaclesLasersCamerasFlashlightsPeepholes. ...
- Used in telescope and binoculars. ...
- Concave lens used in glasses. ...
- Uses of concave lens in lasers. ...
- Use of concave lens in cameras. ...
- Used in flashlights. ...
- Concave lens used in peepholes.
Uses of concave lens:
- Concave Lens Uses. Telescope and BinocularsSpectaclesLasersCamerasFlashlightsPeepholes. ...
- Used in telescope and binoculars. ...
- Concave lens used in glasses. ...
- Uses of concave lens in lasers. ...
- Use of concave lens in cameras. ...
- Used in flashlights. ...
- Concave lens used in peepholes.
Explanation:
#Hope you have satisfied with this answer.