Reflection by Spherical Mirrors - NEET Physics Questions
← Back to Ray Optics

Reflection by Spherical Mirrors

Practice Questions:
Question 11: easy

Mark the correct options :

1. If the reflected rays are converging, we have a real object
2. If the final reflected rays are converging, we have a real image
3. The image of a virtual object is called a virtual image
4. If the image is virtual, the corresponding object is called a virtual object
View Answer
πŸ’¬ Discuss this Question
Question 12: easy

Which of the following (referred to a spherical mirror) depend on whether the rays are paraxial or not ?

1. Pole
2. Focus
3. Radius of curvature
4. Principal axis
View Answer
πŸ’¬ Discuss this Question
Question 13: easy

The image of an object placed perpendicular to the principal axis of a mirror, will be erect if :

1. The object and the image are both virtual
2. The object is real but image is virtual
3. The object is virtual but image is real
4. Both (2) and (3)
View Answer
πŸ’¬ Discuss this Question
Question 14: difficult

An object O is placed in front of a plane mirror and concave mirror as shown in fig. If β€˜f’ is the focal length of concave mirror then the separation between the two mirrors so that the images formed by mirrors coincide:

1. 9f/4
2. 7f/4
3. f
4. None of these
View Answer
πŸ’¬ Discuss this Question
Question 15: moderate

A light ray traveling parallel to the principal axis of a concave mirror strikes the mirror at angle of incidence q. If radius of curvature of the mirror is R, then after reflection, the ray meets the principal axis at distance d from the centre of curvature, then d isΒ 

1. R/2
2. \[\frac{R cos\theta}{2}\]
3. \[\frac{R}{2cos\theta}\]
4. \[\frac{R}{2}(1+cos\theta)\]
View Answer
πŸ’¬ Discuss this Question
Question 16: difficult

In the figure shown find the total magnification after two successive reflections first on M1 & then on M2 (Take Ist reflection from concave mirror)

1. +1
2. -2
3. +2
4. -1
View Answer
πŸ’¬ Discuss this Question
Question 17: moderate

A linear object is placed along the axis of a mirror as shown in fig. If β€˜f’ is the focal length of the mirror then the length of image isΒ 

1. 2f/3
2. f
3. f/3
4. None of these
View Answer
πŸ’¬ Discuss this Question
Question 18: moderate

A short linear object of length L lies on the axis of a spherical mirror of focal length Ζ’ at a distance u from the mirror. Its image has an axial length L’ equal to :

1. \[L\left[ \frac{f}{u-f} \right]^{2}\]
2. \[L\left[ \frac{u+f}{f} \right]^{1/2}\]
3. \[L\left[ \frac{u-f}{f} \right]^{2}\]
4. \[L\left[ \frac{2f}{u+f} \right]^{2}\]
View Answer
πŸ’¬ Discuss this Question