Class 10 Exam > Class 10 Questions > A thin lens and a spherical mirror have a foc...
Start Learning for Free
A thin lens and a spherical mirror have a focal length of + 15 cm each.
- a)Both are convex.
- b)The lens is convex and the mirror is concave.
- c)The lens is concave and the mirror is convex.
- d)Both are concave.
Correct answer is 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
A thin lens and a spherical mirror have a focal length of + 15 cm each...
Explanation:
A thin lens and a spherical mirror have a focal length of 15 cm each. The options given are:
a) Both are convex.
b) The lens is convex and the mirror is concave.
c) The lens is concave and the mirror is convex.
d) Both are concave.
The correct answer is 'A', which means both the lens and the mirror are convex. Let's understand why this is the correct answer.
Convex Lens:
A convex lens is thicker at its center than at its edges. When light rays pass through a convex lens, they converge at a point on the other side of the lens. This point is called the focal point. The distance between the lens and the focal point is called the focal length.
Spherical Mirror:
A spherical mirror is a mirror with a curved surface. If the mirror is curved inward, it is called a concave mirror, and if it is curved outward, it is called a convex mirror. In this case, we are given a convex mirror. When light rays reflect from a convex mirror, they converge at a point called the focal point. The distance between the mirror and the focal point is called the focal length.
Why Option 'A' is Correct?
When a convex lens and a convex mirror have the same focal length, it means that they have the same curvature. This is only possible if both the lens and the mirror have a convex shape.
If the lens was concave, it would diverge the light rays, and they would not converge at the same point as the mirror. Similarly, if the mirror was concave, it would converge the light rays too much, and they would not converge at the same point as the lens.
Therefore, the correct answer is 'A' - both the lens and the mirror are convex.
A thin lens and a spherical mirror have a focal length of 15 cm each. The options given are:
a) Both are convex.
b) The lens is convex and the mirror is concave.
c) The lens is concave and the mirror is convex.
d) Both are concave.
The correct answer is 'A', which means both the lens and the mirror are convex. Let's understand why this is the correct answer.
Convex Lens:
A convex lens is thicker at its center than at its edges. When light rays pass through a convex lens, they converge at a point on the other side of the lens. This point is called the focal point. The distance between the lens and the focal point is called the focal length.
Spherical Mirror:
A spherical mirror is a mirror with a curved surface. If the mirror is curved inward, it is called a concave mirror, and if it is curved outward, it is called a convex mirror. In this case, we are given a convex mirror. When light rays reflect from a convex mirror, they converge at a point called the focal point. The distance between the mirror and the focal point is called the focal length.
Why Option 'A' is Correct?
When a convex lens and a convex mirror have the same focal length, it means that they have the same curvature. This is only possible if both the lens and the mirror have a convex shape.
If the lens was concave, it would diverge the light rays, and they would not converge at the same point as the mirror. Similarly, if the mirror was concave, it would converge the light rays too much, and they would not converge at the same point as the lens.
Therefore, the correct answer is 'A' - both the lens and the mirror are convex.
Free Test
FREE
| Start Free Test |
Community Answer
A thin lens and a spherical mirror have a focal length of + 15 cm each...
According to sign convention distances and points are given their positive or negative sign on the basis of direction of propagation of incident Ray and the focus of both convex mirror and lens are in the front of propagating incident Ray of light so it is taken as positive
Attention Class 10 Students!
To make sure you are not studying endlessly, EduRev has designed Class 10 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 10.
|
Explore Courses for Class 10 exam
|
|
Similar Class 10 Doubts
Top Courses for Class 10View all
A thin lens and a spherical mirror have a focal length of + 15 cm each.a)Both are convex.b)The lens is convex and the mirror is concave.c)The lens is concave and the mirror is convex.d)Both are concave.Correct answer is 'A'. Can you explain this answer?
Question Description
A thin lens and a spherical mirror have a focal length of + 15 cm each.a)Both are convex.b)The lens is convex and the mirror is concave.c)The lens is concave and the mirror is convex.d)Both are concave.Correct answer is 'A'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about A thin lens and a spherical mirror have a focal length of + 15 cm each.a)Both are convex.b)The lens is convex and the mirror is concave.c)The lens is concave and the mirror is convex.d)Both are concave.Correct answer is 'A'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A thin lens and a spherical mirror have a focal length of + 15 cm each.a)Both are convex.b)The lens is convex and the mirror is concave.c)The lens is concave and the mirror is convex.d)Both are concave.Correct answer is 'A'. Can you explain this answer?.
A thin lens and a spherical mirror have a focal length of + 15 cm each.a)Both are convex.b)The lens is convex and the mirror is concave.c)The lens is concave and the mirror is convex.d)Both are concave.Correct answer is 'A'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about A thin lens and a spherical mirror have a focal length of + 15 cm each.a)Both are convex.b)The lens is convex and the mirror is concave.c)The lens is concave and the mirror is convex.d)Both are concave.Correct answer is 'A'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A thin lens and a spherical mirror have a focal length of + 15 cm each.a)Both are convex.b)The lens is convex and the mirror is concave.c)The lens is concave and the mirror is convex.d)Both are concave.Correct answer is 'A'. Can you explain this answer?.
Solutions for A thin lens and a spherical mirror have a focal length of + 15 cm each.a)Both are convex.b)The lens is convex and the mirror is concave.c)The lens is concave and the mirror is convex.d)Both are concave.Correct answer is 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 10.
Download more important topics, notes, lectures and mock test series for Class 10 Exam by signing up for free.
Here you can find the meaning of A thin lens and a spherical mirror have a focal length of + 15 cm each.a)Both are convex.b)The lens is convex and the mirror is concave.c)The lens is concave and the mirror is convex.d)Both are concave.Correct answer is 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A thin lens and a spherical mirror have a focal length of + 15 cm each.a)Both are convex.b)The lens is convex and the mirror is concave.c)The lens is concave and the mirror is convex.d)Both are concave.Correct answer is 'A'. Can you explain this answer?, a detailed solution for A thin lens and a spherical mirror have a focal length of + 15 cm each.a)Both are convex.b)The lens is convex and the mirror is concave.c)The lens is concave and the mirror is convex.d)Both are concave.Correct answer is 'A'. Can you explain this answer? has been provided alongside types of A thin lens and a spherical mirror have a focal length of + 15 cm each.a)Both are convex.b)The lens is convex and the mirror is concave.c)The lens is concave and the mirror is convex.d)Both are concave.Correct answer is 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A thin lens and a spherical mirror have a focal length of + 15 cm each.a)Both are convex.b)The lens is convex and the mirror is concave.c)The lens is concave and the mirror is convex.d)Both are concave.Correct answer is 'A'. Can you explain this answer? tests, examples and also practice Class 10 tests.
|
|
Explore Courses for Class 10 exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup