reflection of light
dispersion of light
total internal reflection of light
refraction of light Ans. c
Answer is Right!
Answer is Wrong!
optics
2. The mirror used by the dentists to see the teeth of the patients is
convex
concave
plane
none of the above
Answer is Right!
Answer is Wrong!
Detailed SolutionThe mirror used by the dentists to see the teeth of the patients is
3. The image formed by an astronomical telescope is
virtual and diminished
virtual and magnified
real and diminished
real and magnified
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Answer is Wrong!
Detailed SolutionThe image formed by an astronomical telescope is
4. Which of the following is used for correcting myopic eyes ?
Concave Lens
Convex Lens
Cylindrical Lens
None of the above
Answer is Right!
Answer is Wrong!
Detailed SolutionWhich of the following is used for correcting myopic eyes ?
5. Which of the following colours of light travels slowest in glass?
Red
Green
Violet
All travel with the same speed.
Answer is Right!
Answer is Wrong!
Detailed SolutionWhich of the following colours of light travels slowest in glass?
6. Brilliance of diamond is due to
interference of light
diffraction of light
polarization of light
total intemal reflection of light
Answer is Right!
Answer is Wrong!
7. The mirror used in search lights is
concave
convex
plane
none
Answer is Right!
Answer is Wrong!
8. For the myopic eye, the defect is cured by
Convex lens
Concave lens
Cylindrical lens
None of the above
Answer is Right!
Answer is Wrong!
9. An object is placed between two parallel plane mirrors. The number of images formed is
four
one
two
infinite
Answer is Right!
Answer is Wrong!
10. Which one of the following types of mirror is used to see the traffic behind the car?
Convex mirror
Concave mirror
Plane mirror
Spherical mirror
Answer is Right!
Answer is Wrong!