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Three times enlarged (1).real(2).virtual image of an object placed at a distance of 30 cm from a concave mirror is obtained. Find the focal length of the concave mirror in each case . I solve the question but here it's a problem f=22.5 cm it's correct but second one not show the correct answer I solve it 2 times .please give me the solution.?
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Three times enlarged (1).real(2).virtual image of an object placed at ...
Solution:
1. For the first case:
Given, the object distance (u) = -30 cm
Magnification (m) = 3
Using the magnification formula:
m = -v/u
Substitute the values and solve for v:
3 = -v/(-30)
v = -90 cm
Now, use the mirror formula to find the focal length (f):
1/f = 1/v + 1/u
1/f = 1/-90 + 1/-30
1/f = -1/90 - 1/30
1/f = -1/45
f = -45 cm
Therefore, the focal length of the concave mirror in the first case is -45 cm.
2. For the second case:
Given, the object distance (u) = -30 cm
Magnification (m) = -3 (since it is a virtual image)
Using the magnification formula:
m = v/u
Substitute the values and solve for v:
-3 = v/(-30)
v = 90 cm
Now, use the mirror formula to find the focal length (f):
1/f = 1/v + 1/u
1/f = 1/90 + 1/-30
1/f = 1/90 - 1/30
1/f = 1/90 - 3/90
1/f = -2/90
f = -45 cm
Therefore, the focal length of the concave mirror in the second case is -45 cm.
1. For the first case:
Given, the object distance (u) = -30 cm
Magnification (m) = 3
Using the magnification formula:
m = -v/u
Substitute the values and solve for v:
3 = -v/(-30)
v = -90 cm
Now, use the mirror formula to find the focal length (f):
1/f = 1/v + 1/u
1/f = 1/-90 + 1/-30
1/f = -1/90 - 1/30
1/f = -1/45
f = -45 cm
Therefore, the focal length of the concave mirror in the first case is -45 cm.
2. For the second case:
Given, the object distance (u) = -30 cm
Magnification (m) = -3 (since it is a virtual image)
Using the magnification formula:
m = v/u
Substitute the values and solve for v:
-3 = v/(-30)
v = 90 cm
Now, use the mirror formula to find the focal length (f):
1/f = 1/v + 1/u
1/f = 1/90 + 1/-30
1/f = 1/90 - 1/30
1/f = 1/90 - 3/90
1/f = -2/90
f = -45 cm
Therefore, the focal length of the concave mirror in the second case is -45 cm.
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Three times enlarged (1).real(2).virtual image of an object placed at a distance of 30 cm from a concave mirror is obtained. Find the focal length of the concave mirror in each case . I solve the question but here it's a problem f=22.5 cm it's correct but second one not show the correct answer I solve it 2 times .please give me the solution.? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Three times enlarged (1).real(2).virtual image of an object placed at a distance of 30 cm from a concave mirror is obtained. Find the focal length of the concave mirror in each case . I solve the question but here it's a problem f=22.5 cm it's correct but second one not show the correct answer I solve it 2 times .please give me the solution.? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Three times enlarged (1).real(2).virtual image of an object placed at a distance of 30 cm from a concave mirror is obtained. Find the focal length of the concave mirror in each case . I solve the question but here it's a problem f=22.5 cm it's correct but second one not show the correct answer I solve it 2 times .please give me the solution.?.
Three times enlarged (1).real(2).virtual image of an object placed at a distance of 30 cm from a concave mirror is obtained. Find the focal length of the concave mirror in each case . I solve the question but here it's a problem f=22.5 cm it's correct but second one not show the correct answer I solve it 2 times .please give me the solution.? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Three times enlarged (1).real(2).virtual image of an object placed at a distance of 30 cm from a concave mirror is obtained. Find the focal length of the concave mirror in each case . I solve the question but here it's a problem f=22.5 cm it's correct but second one not show the correct answer I solve it 2 times .please give me the solution.? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Three times enlarged (1).real(2).virtual image of an object placed at a distance of 30 cm from a concave mirror is obtained. Find the focal length of the concave mirror in each case . I solve the question but here it's a problem f=22.5 cm it's correct but second one not show the correct answer I solve it 2 times .please give me the solution.?.
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Three times enlarged (1).real(2).virtual image of an object placed at a distance of 30 cm from a concave mirror is obtained. Find the focal length of the concave mirror in each case . I solve the question but here it's a problem f=22.5 cm it's correct but second one not show the correct answer I solve it 2 times .please give me the solution.?, a detailed solution for Three times enlarged (1).real(2).virtual image of an object placed at a distance of 30 cm from a concave mirror is obtained. Find the focal length of the concave mirror in each case . I solve the question but here it's a problem f=22.5 cm it's correct but second one not show the correct answer I solve it 2 times .please give me the solution.? has been provided alongside types of Three times enlarged (1).real(2).virtual image of an object placed at a distance of 30 cm from a concave mirror is obtained. Find the focal length of the concave mirror in each case . I solve the question but here it's a problem f=22.5 cm it's correct but second one not show the correct answer I solve it 2 times .please give me the solution.? theory, EduRev gives you an
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