Home
Class 12
PHYSICS
Suppose that the lower half of the conca...

Suppose that the lower half of the concave mirror's reflecting surface in figure is covered with an opaque (non-reflective) material. What effect will this have on the image of an object placed in front of the mirror ?

Text Solution

Verified by Experts

You may think the image will now show only half of the object, but taking the laws of reflection to be true for all points of the remaining part of the mirror, the image will be that of the whole obect. However, as the area of the reflecting surface has been reduced, the intensity of the image will be low (in the case, half).
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • RAY OPTICAL AND INSTRUMENTS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise VERY SHORT ANSWER QUESTIONS|12 Videos

  • RAY OPTICAL AND INSTRUMENTS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise SHORT ANSWER QUESTIONS|10 Videos

  • RAY OPTICAL AND INSTRUMENTS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise TEXTUAL EXERCISES|60 Videos

  • NUCLEI

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise DAM SURE (VSAQ)|1 Videos

  • SEMICONDUCTOR ELECTRONICS : MATERIALS , DEVICES , AND SIMPLE CIRCUITS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise ADDITIONAL EXERCISES|8 Videos

Similar Questions

Explore conceptually related problems

A concave mirror forms a point sized image for an object placed at

At where the object is placed to get a virtual image in front of concave mirror.

Knowledge Check

  • An object is placed in front of a concave mirror of focal length f as shown if figure. Choose the correct shape of the image :

    A
    B
    C
    D

  • An object is placed in front of a convex mirror at a distance of 50 cm. A plane mirror is introduced covering the lower half of the convex mirror. If the distance between the object and the plane mirror is 30 cm, it is found that there is no gap between the images formed by the two mirrors. The radius of the convex mirror is

    A
    12.5 cm
    B
    25 cm
    C
    50 cm
    D
    100 cm

  • An object is placed in front of a convex mirror at a distance of 50 cm. A plane mirror is introduced covering the lower half of the convex mirror. If the distance between the object and the plane mirror is 30 cm, it is found that there is no gap between the images formed by the two mirrors. The radius of the convex mirror is :

    A
    12.5cm
    B
    25cm
    C
    50cm
    D
    100cm

    • Similar Questions

    Explore conceptually related problems

    The u-v curve in a concave mirror as shown in figure. Find the nature and position of the image, when an object is placed at 15 cm from the mirror.

    A concave mirror produces three times magnified real image of an object palced at 10 cm in front of it. Where is the image located ?

    An object is placed in front of a convex mirror at a distance of 50 cm. A plane mirror is introduced covering the lower half of the convex mirror. If the distance between the object and the plane mirror is 30 cm, it is found that there is no parallax between the images formed by the two mirrors. What is the radius of curvature of the convex mirror ?

    An object is placed in front of a convex mirror at a distance of 50 cm. A plane mirror is intorduced covering the lower half of the convex mirror. If the distance between the object and the plane mirror is 30 cm, it is found that there is no parallax between the images formed by the two mirrors, What is the radius of curvature of the convex mirror?

    You have learnt in the text how Huygens' principle leads to the laws of reflection and refraction. Use the same principle to deduce directly that a point object placed in front of a plane mirror produces a virtual image whose distance from the mirror is equal to the object distance from the mirror.

    Home
    Profile