MCQ 11 Mark
Make the correct choice for each of the following :Which one of the five diagrams represents the path of a ray of light through a periscope?
- A
- B
- ✓
- D
Answer
View full question & answer→Correct option: C.
Questions
MCQ
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Test yourself on this topic
12 questions · timed · auto-graded
MCQ 21 Mark
Make the correct choice for each of the following:
fig illustrates an experiment to determine the refractive index of glass. Which one of the following graphs would give a straight line through the origin?
fig illustrates an experiment to determine the refractive index of glass. Which one of the following graphs would give a straight line through the origin?
- A$\angle i$ plotted against $\angle r$.
- BSin i plotted against $\angle r$.
- ✓Sin i plotted against $\operatorname{Sin} r$
- D$\frac{1}{\angle \mathrm{i}}$ plotted against $\frac{1}{\angle \mathrm{r}}$
Answer
View full question & answer→Correct option: C.
Sin i plotted against $\operatorname{Sin} r$
Sin i plotted against $\operatorname{Sin} r$
MCQ 31 Mark
Make the correct for each of the following :
With reference to the fig, the refractive index of the glass block is
With reference to the fig, the refractive index of the glass block is
- A$\frac{\sin w}{\sin z}$
- B$\frac{\sin x}{\sin w}$
- C$\frac{\sin u}{\sin x}$
- ✓$\frac{\sin w}{\sin x}$
Answer
View full question & answer→Correct option: D.
$\frac{\sin w}{\sin x}$
$\frac{\sin w}{\sin x}$
MCQ 41 Mark
Make the correct choices for each of the following :
Total Internal reflection takes place when
(where ∠i = angle of incidence, ∠r = angle of refraction, ∠C = critical angle)
Total Internal reflection takes place when
(where ∠i = angle of incidence, ∠r = angle of refraction, ∠C = critical angle)
- ALight is going from glass to air and $\angle \mathrm{I}<\angle \mathrm{C}$
- BLight is going from air to glass and $\angle \mathrm{i}<\angle \mathrm{C}$
- ✓Light is going from glass to air and $\angle \mathrm{i}>\angle \mathrm{C}$
- DLight is going from air to glass and $\angle \mathrm{i}>\angle \mathrm{C}$
Answer
View full question & answer→Correct option: C.
Light is going from glass to air and $\angle \mathrm{i}>\angle \mathrm{C}$
Light is going from glass to air and $\angle \mathrm{i}>\angle \mathrm{C}$
MCQ 51 Mark
Make the correct choice for each of the following:
Which one of the following Fig correctly shows the path of the ray through the glass block?
Which one of the following Fig correctly shows the path of the ray through the glass block?
- A
- B
- C
- ✓
Answer
View full question & answer→Correct option: D.
MCQ 61 Mark
Which of the following has the highest refractive index
- AGlass
- Bwater
- ✓diamond
- Druby
Answer
View full question & answer→Correct option: C.
diamond
Diamond
MCQ 71 Mark
If a light ray does not undergo, refraction at the boundary between two media, the angle of incidence is
- ✓$0^{\circ}$
- B$45^{\circ}$
- C$60^{\circ}$
- D$90^{\circ}$
Answer
View full question & answer→Correct option: A.
$0^{\circ}$
MCQ 81 Mark
Make the correct choices in the following items :
A converging lens $B$ has the same focal length as a converging lens A, but only half the diameter, Both lens are used, separately, to form two images of building on a screen. which one of the follwing statements about the images is correct?
A converging lens $B$ has the same focal length as a converging lens A, but only half the diameter, Both lens are used, separately, to form two images of building on a screen. which one of the follwing statements about the images is correct?
- AThe image $B$ formed is closer to the lens than the image formed by $A$
- BThe image $B$ formed is bigger than the image formed by $A$
- CThe image are of yhe same brightness
- ✓Both the image are real and inverted
Answer
View full question & answer→Correct option: D.
Both the image are real and inverted
MCQ 91 Mark
Make the correct choices in the following items : The image formed by a diverging lens, shown in fig, , is
- AVirtual , erect , magnified
- ✓Virtual , erect , diminished
- CVirtual , inverted , magnified
- DReal , inverted , diminished
Answer
View full question & answer→Correct option: B.
Virtual , erect , diminished
MCQ 101 Mark
Make the correct choices in the following items:
lf the image can be focused on a screen it must be
lf the image can be focused on a screen it must be
- Aerrect
- Bvirtual
- ✓real
- Dupright
Answer
View full question & answer→Correct option: C.
real
MCQ 111 Mark
Make the rrect choices in the following items : An object is placed $50 \ cm$ from a connverging lens of focal length $30 \ cm$. The image produced would be
- AInverted and same size as the object
- BInverted and diminished
- ✓Inverted and magnified
- DErect and diminished
Answer
View full question & answer→Correct option: C.
Inverted and magnified
MCQ 121 Mark
Make the correct choices in the following items :
A magnified erect image is obtained when an object is positioned in front of a converging lens. The distance of the object from the lens would be
A magnified erect image is obtained when an object is positioned in front of a converging lens. The distance of the object from the lens would be
- AGreater than three focal lengths
- Bequal to two focal lenghts
- Cbetween one and two focal lengtghs
- ✓less then one focal length
Answer
View full question & answer→Correct option: D.
less then one focal length