English

An image formed by a lens is erect. Such an image could be formed by a - Science

Advertisements
Advertisements

Question

An image formed by a lens is erect. Such an image could be formed by a

Options

  • the convex lens provided the image is smaller than an object.

  • the concave lens provided the image is smaller than an object.

  • the concave lens provided the image is larger than an object.

  • the concave lens provided the image is of the same size.

MCQ

Solution

the concave lens provided the image is smaller than an object.

Explanation:

A concave lens provided the image is smaller than an object. The image of an object created by a concave lens is erect, virtual, and diminished.

shaalaa.com
  Is there an error in this question or solution?
Chapter 15: Light - MULTIPLE CHOICE QUESTIONS [Page 81]

APPEARS IN

NCERT Exemplar Science [English] Class 7
Chapter 15 Light
MULTIPLE CHOICE QUESTIONS | Q 8. | Page 81

RELATED QUESTIONS

A spherical mirror produces an image of magnification -1.0 on a screen placed at a distance of 30 cm from the pole of the mirror.

(i) Write the type of mirror in this case.

(ii) What is the focal length of the mirror ?

(iii) What is the nature of the image formed ?

(iv) Draw the ray diagram to show the image formation in this case.


If an object is placed at a distance of 8 cm from a concave mirror of focal length 10 cm, discuss the nature of the image formed by drawing the ray diagram.


An object is placed at the following distances from a concave mirror of focal length 15 cm, turn by turn:

(a) 35 cm
(b) 30 cm
(c) 20 cm
(d) 10 cm
Which position of the object will produce:

(i) a magnified real image?
(ii) a magnified virtual image?
(iii) a diminished real image?
(iv) an image of same size as the object?


An object is placed at a distance of 10 cm from a concave mirror of focal length 20 cm. 

Calculate the image distance.


An object is placed 15 cm from (a) a converging mirror, and (b) a diverging mirror, of radius of curvature 20 cm. Calculate the image position and magnification in each case. 


In which equipment/s do you find ___________________

(i) a concave mirror.
(ii) a convex lens
(iii) reflecting mirrors?

Match the following.

Convex mirror Radio telescopes
Parobolic mirror Rear – view mirror
Snell’s law Kaleidoscope
Dispersion of light sin i/sin r =μ
Refractive index Rainbow

Explain the images formed by a concave mirror.


Large ______ mirrors are used to concentrate sunlight to produce heat in solar furnaces.


The mirror having reflecting surface curved inwards ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×