6.6 Image formation by spherical mirror

Diagram 13 shows a boy standing in front of a plane mirror. Which modification is able to produce a smaller and upright image of the boy?

• 
• 
• 
• 

What is the characteristics of an image if an object is placed in front of a convex mirror?

• Virtual, upright, diminished

• Virtual, upright, magnified

• Virtual, inverted, diminished

• Real, inverted, magnified

Which of the following are used to prevent blind spot?

• convex lens

• convex mirror

• concave lens

• concave mirror

Diagram 14 shows a boy standing in front of a plane mirror in a distance of 4.0 cm. What is the distance between the boy and his image when the mirror is moved 0.75 m away from the boy?

• 8 m

• 8.75 m

• 9.5 m

• 11 m

Which of the following is characteristics of image formed for convex mirror?

I. Diminished

II. Inverted

III. Virtual

• I and II

• I and III

• II and III

Which of the following types of mirrors is the most suitable to be used as security and surveillance mirror?

• Plane mirror

• convex mirror

• concave mirror

The following figure shows a concave mirror. The distance between P and F is

• focal length of the mirror

• the radius of the sphere

• the diameter of the sphere

• a line that connects the pole to the centre of curvature

The figure shows a side mirror of a car. Which of the following shows the characteristics of the image formed by the side mirror of the car?

• real and inverted

• real and magnified

• virtual and same size

• virtual and diminished

A point is placed at a distance of 2r (r is the radius of curvature) in front of a concave mirror to form a real point image in front of the mirror. C and F are the centre of curvature and focal point of the mirror respectively. Where is the point image located?

• at F

• between F and C

• at C

• beyond C

Diagram 20 shows two spherical mirror P and Q with C and C' as their respective centre of curvature. The radius of curvature of mirror Q is twice the radius of curvature of P.

Two objects are separately placed 15 cm from the poles of mirror P and mirror Q. Which of the following pairs about the images observed is correct?

• 
• 
• 
•