Ray Optics-Reflection and Refraction of Light [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 1 - 5 of 36
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Passage
Read the passage given below and answer the questions that follow:
A plane mirror (M1) and a concave mirror (M2) of focal length 10 cm are arranged as shown in figure. An object is kept at origin. Answer the following questions. (Consider image formed by single reflection in all cases)
Question 1 (1 of 2 Based on Passage)
Question MCQ▾
The co-ordinates of image formed by plane mirror are
Choices
Choice (4) | Response | |
---|---|---|
a. | (-20 cm, 0) | |
b. | (10 cm, - 60 cm) | |
c. | (10 cm, -10 cm) | |
d. | (10 cm, 10 cm) |
Question 2 (2 of 2 Based on Passage)
Question MCQ▾
The co-ordinates of image formed by concave mirror are
Choices
Choice (4) | Response | |
---|---|---|
a. | (10 cm, -40 cm) | |
b. | (10 cm, 8 cm) | |
c. | (10 cm, - 60 cm) | |
d. | None of the above |
Question 3
Question Assertion-Reason▾
Assertion(Ꭺ)
The mirrors used in search lights are parabolic and not concave spherical.
Reason(Ꭱ)
In a concave spherical mirror the image formed is always virtual.
Choices
Choice (4) | Response | |
---|---|---|
a. | Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ | |
b. | Both Ꭺ and Ꭱ are false | |
c. | Ꭺ is true but Ꭱ is false | |
d. | Ꭺ is false but Ꭱ is true |
Question 4
Question MCQ▾
Two mirrors are inclined at an angle of 50°. Then what is the number of images formed for an object placed in between the mirrors?
Choices
Choice (4) | Response | |
---|---|---|
a. | 6 | |
b. | 1 | |
c. | 3 | |
d. | 7 |
Question 5
Question MCQ▾
Two plane mirrors are inclined at an angle θ. A ray of light is incident on one mirror at an angle of incidence i . The ray is reflected from this mirror, falls on the second mirror from where it is reflected parallel to the first mirror. What is the value of i , the angle of incidence in terms θ?
Choices
Choice (4) | Response | |
---|---|---|
a. | θ - 90° | |
b. | 2θ - 90° | |
c. | 4θ - 90° | |
d. | 3θ - 90° |