Tag: uses of spherical mirror

Questions Related to uses of spherical mirror

Fill in the blank:

A convex mirror is used as rear view mirror in auto mobiles as it covers ______ area behind the driver.

physics reflection of light at curved surfaces uses of curved mirrors uses of spherical mirror uses of spherical mirrors

  1. wide

  2. narrow

  3. neither A nor B

  4. very narrow

Show answer
Correct Option: A
Explanation:

Convex mirrors produces virtual, erect image to cover wider area, so that drives able to see large area.

Use of concave mirrors:

physics reflection of light at curved surfaces uses of curved mirrors uses of spherical mirror uses of spherical mirrors

  1. for examining internal parts of ear, nose, mouth by physicians

  2. to focus sunlight to produce heat in solar furnaces

  3. as reflectors in headlights of vehicles, torch light to produce strong parallel beam of light

  4. all of the above

Show answer
Correct Option: D
Explanation:

Concave mirrors help to produce large image helps doctors to examine body parts and also are used to auto mobile mechanics to produce strong parallel beam of light during night. Concave mirrors are used to focus sunlight to produce heat from solar furnaces.

Mirror used in solar furnace:

physics reflection of light at curved surfaces uses of curved mirrors uses of spherical mirror uses of spherical mirrors

  1. Concave mirror

  2. Convex mirror

  3. Parabolic mirror

  4. Bi concave mirror

Show answer
Correct Option: A
Explanation:

Concave mirrors are used in solar furnaces, because concave mirrors are the only type of mirror that reflects light in toward a single focal point

A _______ mirror is used for converging solar radiation in solar cookers to generate heat.

physics reflection of light at curved surfaces uses of curved mirrors uses of spherical mirror uses of spherical mirrors

  1. concave

  2. convex

  3. plane

  4. round

Show answer
Correct Option: A
Explanation:

Concave mirror (converging mirrors) is used to concentrate a parallel light beam incident on it at point i.e its focus.

Shaving mirror, rear-view mirror, street lamps, vigilance mirrors. Find the odd one out :

physics reflection of light at curved surfaces uses of curved mirrors uses of spherical mirror uses of spherical mirrors

  1. Shaving mirror

  2. Rear-view mirror

  3. Street mirror

  4. Vigilance mirror

Show answer
Correct Option: A
Explanation:

Except shaving mirror all uses convex mirrors.

Mirrors on the outside of the passenger side of the cars often contain a message that says something like. "Objects are closer than they appear." In the other words, the images seen in the mirror, although looking like the objects in other respects, appear to be further away than they actually are, because the images are the smaller than the objects.
What kind of mirror is being used in this case? 

physics reflection of light at curved surfaces uses of curved mirrors uses of spherical mirror uses of spherical mirrors

  1. plane mirror

  2. convex mirror

  3. concave mirror

  4. The mirror could be concave or convex.

  5. The mirror could be flat or concave.

Show answer
Correct Option: B
Explanation:

Convex mirrors are used in this case.

Since the mirrors are bend outwards, a large range in area to view is covered to see objects behind in cars.
The magnification of the objects is lesser than one for distant objects for convex mirrors. Hence the objects appear farther away than they actually are.

Fill in the blank:

________ mirrors are used in roads and driveway.

physics reflection of light at curved surfaces uses of curved mirrors uses of spherical mirror uses of spherical mirrors

  1. Concave

  2. Convex

  3. Plane

  4. No

Show answer
Correct Option: B
Explanation:

Convex mirrors help in viewing wider area which is not possible with the help of plane and concave mirror. It helps to look over a wide range and thus is helpful in avoiding accident.

What type of mirrors are used in ATM counters?

physics reflection of light at curved surfaces uses of curved mirrors uses of spherical mirror uses of spherical mirrors

  1. Concave

  2. Convex

  3. Plane

  4. None

Show answer
Correct Option: B
Explanation:

To capture wide area. Convex mirror on widely used in ATM centres.

Find the odd one out:

physics reflection of light at curved surfaces uses of curved mirrors uses of spherical mirror uses of spherical mirrors

  1. Shaving mirror

  2. Dentist mirror

  3. Headlight of car

  4. Camera

Show answer
Correct Option: D
Explanation:

Spherical mirrors are used as shaving mirror, dentist mirror and reflector in the headlights of the car. Camera, on the other hand, uses convex lens.

What kind of mirror is suitable for street light bulb reflectors?

physics reflection of light at curved surfaces uses of curved mirrors uses of spherical mirror uses of spherical mirrors

  1. Concave

  2. Convex

  3. Plane

  4. None

Show answer
Correct Option: B
Explanation:

Convex mirrors are used widely as reflectors for street light bulbs as it diverges light ray over a wide area.