Tag: uses of curved mirrors

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Questions Related to uses of curved mirrors

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

Which is the wrong statement out of the following?

  1. A concave mirror can give a virtual image.

  2. A convex mirror can give a virtual image.

  3. A concave mirror can give a diminished virtual image.

  4. A convex mirror cannot give a real image.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The properties of image formed for different object distance are listed below:
Concave mirror:
1)u<f----virtual image , enlarged.
2)f,u,2f---Real, inverted, magnified.
3)u>2f----Real, inverted, diminished.
Convex mirror:
for any object distance virtual,errect and enlarged image.

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

The temperature in a spherical reflector type solar cooker is raised to more than $500^o C$ by :

  1. concentrating energy at one point by using a concave reflector

  2. proper insulation of the cooker

  3. concentrating energy at one point by using a covex reflector

  4. both (A) and (B)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The temperature in a spherical reflector type solar cooler is raided to more than $500^\circ C $ by concentrating energy at one point by using a concave reflector.

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

Dentist's mirror is ...........

  1. Concave mirror

  2. Convex mirror

  3. Plane mirror

  4. Convex lens
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

$ \bf{Concave\ mirrors} $ are used by dentists because at a short range (object distances less than the focal length of the mirror) they produce enlarged, erect and virtual images. It is useful to have a magnified image of a tooth when repairing cavities, cracks, or other abnormalities.

Hence, the correct answer is OPTION A.

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

Name the type of mirror used as a shaving mirror

  1. Concave mirror

  2. Convex mirror

  3. Plane mirror

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Concave mirror is used as shaving mirror. This is because it produces a virtual, erect and magnified image of our face when held in front of the face at a distance less than its focal length thus, allowing us to observe our face closely.

Hence, the correct answer is OPTION A.