MCQ 11 Mark
The phenomenon of light passing through the object is called ……………..
- AReflection
- ✓Refraction
- CDispersion
- DTotal internal reflection
Answer
View full question & answer→Correct option: B.
Refraction
Refraction
Questions
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Test yourself on this topic
17 questions · timed · auto-graded
MCQ 21 Mark
In the head lights of motor vehicles, ……………… mirrors are used as reflectors.
- APlane mirrors
- BConcave lenses
- CConvex mirrors
- ✓Concave mirrors
Answer
View full question & answer→Correct option: D.
Concave mirrors
Concave mirrors
MCQ 31 Mark
Incident angle of a ray of light is 30°. The angle between the incidend ray and the reflected ray is …………….
- A50°
- B90°
- ✓60°
- D15°
Answer
View full question & answer→Correct option: C.
60°
60°
MCQ 41 Mark
The velocity of light in vacuum is $3 \times 108 ms^{-1}$ and in glass is $2 \times 108 ms^{-1}$. The refractive index of glass is .
- A2
- ✓1.5
- C1.8
- D1.33
Answer
View full question & answer→Correct option: B.
1.5
1.5
MCQ 51 Mark
Reflection by a looking mirror is called …………….
- ✓Regular reflection
- BIrregular reflection
- CRegular and irregular reflection
- DNone of these
Answer
View full question & answer→Correct option: A.
Regular reflection
Regular reflection
MCQ 61 Mark
In dispersion, the colour of light that will bend more is ……………..
- ARed
- Byellow
- CGreen
- ✓Violet
Answer
View full question & answer→Correct option: D.
Violet
violet
MCQ 71 Mark
The ENT doctor uses a …………….
- APlane mirror
- ✓Concave mirror
- CConvex mirror
- DConvex lens
Answer
View full question & answer→Correct option: B.
Concave mirror
Concave mirror
MCQ 81 Mark
Which of the following demonstrates the law of reflection?
- A
- B
- C
- ✓
Answer
View full question & answer→Correct option: D.
MCQ 91 Mark
Which surface will not reflect most of the light falling on them?
- ✓Rough surface
- BSmooth surface
- CShining surface
- DOpaque surface
Answer
View full question & answer→Correct option: A.
Rough surface
MCQ 101 Mark
Which object use the reflection of light?
- AKaleidoscope
- BPlane mirror
- CConvex mirror
- ✓All of these
Answer
View full question & answer→Correct option: D.
All of these
MCQ 111 Mark
If the focal length of a spherical mirror is 10 cm, what is the value of its radius of curvature?
- A10 cm
- B5 cm
- C20 cm
- D15 cm
Answer
View full question & answer→20 cm
MCQ 121 Mark
If the image and object distance is same, then the object is placed at
- Ainfinity
- Bat F
- Cbetween f and P
- DAt C
Answer
View full question & answer→At C
MCQ 131 Mark
The distance from the pole to the focus is called
- Apole length
- Bfocal length
- Cprincipal axis
- DNone of the above
Answer
View full question & answer→Principal axis
MCQ 141 Mark
The imaginary line passing through the centre of curvature and pole of a spherical mirror is called
- Acentre of curvature
- Bpole
- Cprincipal axis
- Dradius curvature
Answer
View full question & answer→Principal axis
MCQ 151 Mark
The spherical mirror used as a rear view mirror in the vehicle is
- Aconcave mirror
- Bconvex mirror
- Cplane mirror
- DNone of the above
Answer
View full question & answer→Convex mirror
MCQ 161 Mark
The spherical mirror with a reflecting surface curved inward is called
- Aconvex mirror
- Bconcave mirror
- Ccurved mirror
- DNone of the above
Answer
View full question & answer→Concave mirror
MCQ 171 Mark
Which of the following has curved reflecting surface?
- Aplane mirrors
- Bspherical mirrors
- Csimple mirrors
- DNone of the above
Answer
View full question & answer→Spherical mirrors