MCQ 11 Mark
A student studies that a plane mirror results in a laterally inverted image after reflecting. Which of these represents the image likely to be formed by a plane mirror?
- A
- B
- C
- D
Answer
View full question & answer→self
Questions
M.C.Q. [I MARKS]
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27 questions · 25 auto-graded MCQ + 2 self-marked written.
MCQ 21 Mark
In the figure of the human eye, the cornea is represented by the letter
- AA
- BB
- ✓C
- DD
Answer
View full question & answer→Correct option: C.
C
C
MCQ 31 Mark
Part of the eye which controls the entering of light is called
- ✓iris
- Bcornea
- Clens
- Dretina
Answer
View full question & answer→Correct option: A.
iris
A
MCQ 41 Mark
- AOnly $S_1$
- B$S_1$ and $S_2$
- C$S_2$ and $S_3$
- ✓All the three surfaces
Answer
View full question & answer→Correct option: D.
All the three surfaces
D
MCQ 51 Mark
- ✓A
- BC
- CB
- DD
Answer
View full question & answer→Correct option: A.
A
A
MCQ 61 Mark
We can see a non-luminous object when light
- Aemitted by the object falls on the eye
- ✓is reflected from the object towards our eye
- Ccompletely passes through the object
- Dgets completely absorbed by the object
Answer
View full question & answer→Correct option: B.
is reflected from the object towards our eye
B
MCQ 71 Mark
- A$25^{\circ}$
- B$50^{\circ}$
- C$65^{\circ}$
- D$115^{\circ}$
Answer
View full question & answer→self
MCQ 81 Mark
The picture shows a candle in front of two plane mirrors joined at their sides.
What will increase the number of images formed In the mirrors?
What will increase the number of images formed In the mirrors?
- ADecrease in the size of the object
- BIncrease in the size of the mirrors
- ✓Decrease in the angle between the two mirrors
- DIncrease in the distance between the object and the mirrors
Answer
View full question & answer→Correct option: C.
Decrease in the angle between the two mirrors
C
MCQ 91 Mark
Which of these objects reflects light?
- AThe sun
- ✓The moon
- CA glowing bulb
- DBurning wood
Answer
View full question & answer→Correct option: B.
The moon
B
MCQ 101 Mark
- ✓A
- BB
- CC
- DD
Answer
View full question & answer→Correct option: A.
A
A
MCQ 111 Mark
The change in converging power of an eye lens is caused by the action of
- Aretina
- Boptic nerve
- ✓ciliary muscles
- Diris
Answer
View full question & answer→Correct option: C.
ciliary muscles
C
MCQ 121 Mark
Assertion (A) Rainbow is the natural phenomenon of multiple reflection.
Reason (R) Rainbow forms when sunlight falls on the rainwater droplets.
Reason (R) Rainbow forms when sunlight falls on the rainwater droplets.
- ABoth A and R are true and R is the correct explanation of A
- BBoth A and R are true but R is not the correct explanation of A
- CA is true but R is false.
- ✓A is false but R is true.
Answer
View full question & answer→Correct option: D.
A is false but R is true.
D
MCQ 131 Mark
Assertion (A) Owl can see very well in the night.
Reason (R) Owl has a large cornea and a large pupil to allow more light in its eye.
Reason (R) Owl has a large cornea and a large pupil to allow more light in its eye.
- ✓Both A and R are true and R is the correct explanation of A
- BBoth A and R are true but R is not the correct explanation of A
- CA is true but R is false.
- DA is false but R is true.
Answer
View full question & answer→Correct option: A.
Both A and R are true and R is the correct explanation of A
A
MCQ 141 Mark
If a single ray is incident on a plane mirror, then how many reflected ray will you observe?
- ATwo
- BZero
- ✓One
- DInfinite
Answer
View full question & answer→Correct option: C.
One
C
MCQ 151 Mark
The light ray after reflection from a surface is known as
- Anormal ray
- Brefracted ray
- ✓reflected rays
- Dincident ray
Answer
View full question & answer→Correct option: C.
reflected rays
C
MCQ 161 Mark
The nature of image formed by a plane mirror is
- ✓always virtual
- Balways inverted
- Calways real
- Dreal and virtual
Answer
View full question & answer→Correct option: A.
always virtual
A
MCQ 171 Mark
Assertion (A) Eye sight becomes foggy in old ages.
Reason (R) Crystalline lens becomes milky and cloudy in old ages.
Reason (R) Crystalline lens becomes milky and cloudy in old ages.
- ✓Both A and R are true and R is the correct explanation of A.
- BBoth A and R are true but R is not the correct explanation of A.
- CA is true but R is false.
- DA is false but R is true.
Answer
View full question & answer→Correct option: A.
Both A and R are true and R is the correct explanation of A.
A
MCQ 181 Mark
Assertion (A) Iris controls the size of lens.
Reason (R) Iris controls the amount of light entering in the eye.
Reason (R) Iris controls the amount of light entering in the eye.
- ABoth A and R are true and R is the correct explanation of A.
- BBoth A and R are true but R is not the correct explanation of A.
- CA is true but R is false.
- ✓A is false but R is true.
Answer
View full question & answer→Correct option: D.
A is false but R is true.
(D) A is false but R is true.
Iris controls the size of pupil. Hence, A is false but R is true.
Iris controls the size of pupil. Hence, A is false but R is true.
MCQ 191 Mark
Assertion (A) Night birds have more rods than cones.
Reason (R) Rods are more sensitive for dim light than cones.
Reason (R) Rods are more sensitive for dim light than cones.
- ✓Both A and R are true and R is the correct explanation of A.
- BBoth A and R are true but R is not the correct explanation of A.
- CA is true but R is false.
- DA is false but R is true.
Answer
View full question & answer→Correct option: A.
Both A and R are true and R is the correct explanation of A.
(A) Both A and R are true and R is the correct explanation of A.
Night birds have more rods than cones because they are designed by nature to see in night. Hence, both A and R are true and R is the correct explanation of A
Night birds have more rods than cones because they are designed by nature to see in night. Hence, both A and R are true and R is the correct explanation of A
MCQ 201 Mark
Assertion (A) Irregular surfaces produce diffused reflection.
Reason (R) Due to failure of law of reflection, diffused reflection is produced.
Reason (R) Due to failure of law of reflection, diffused reflection is produced.
- ABoth A and R are true and R is the correct explanation of A.
- BBoth A and R are true but R is not the correct explanation of A.
- ✓A is true but R is false.
- DA is false but R is true.
Answer
View full question & answer→Correct option: C.
A is true but R is false.
(C) A is true but R is false.
The law of reflection is followed by every surface but due to irregularities, some surfaces produce diffused reflection. Hence, A is true but R is false.
The law of reflection is followed by every surface but due to irregularities, some surfaces produce diffused reflection. Hence, A is true but R is false.
MCQ 211 Mark
A person cannot see the distant objects clearly, (though) he can see the nearby object clearly. He Is suffering from the defect of vision called
- ✓myopia
- Bhypermetropia
- Ccataract
- Dnight blindness
Answer
View full question & answer→Correct option: A.
myopia
A
MCQ 221 Mark
Which of the following statements is correct regarding rods and cones in the human eye?
- ACones are sensitive to dim light.
- ✓Cones are sensitive to bright light.
- CRods are sensitive to bright light.
- DRods can sense colour.
Answer
View full question & answer→Correct option: B.
Cones are sensitive to bright light.
B
MCQ 231 Mark
How does the eye change in order to focus on near or distant objects?
- AThe eye lens moves in or out
- BThe retina moves in or out
- ✓The eye lens becomes thicker or thinner
- DThe pupil becomes larger or smaller
Answer
View full question & answer→Correct option: C.
The eye lens becomes thicker or thinner
C
MCQ 241 Mark
As the angle between two plane mirrors is decreasing gradually, the number of images of an object placed between them
- Afirst increases then decreases
- Bfirst decreases then increases
- ✓increases
- Ddecreases
Answer
View full question & answer→Correct option: C.
increases
C
MCQ 251 Mark
- A$25^{\circ}$
- ✓$70^{\circ}$
- C$50^{\circ}$
- D$115^{\circ}$
Answer
View full question & answer→Correct option: B.
$70^{\circ}$
B
MCQ 261 Mark
Image formed by a plane mirror is
- Avirtual, behind the mirror and enlarged
- ✓virtual, behind the mirror and of the same size as the object
- Creal at the surface of the mirror and enlarged
- Dreal, behind the mirror and of the same size as the object
Answer
View full question & answer→Correct option: B.
virtual, behind the mirror and of the same size as the object
B
MCQ 271 Mark
Angle of incidence is equal to the angle of reflection.
- ✓Always
- BSometimes
- CUnder special conditions
- DNever
Answer
View full question & answer→Correct option: A.
Always
A