An object of height 7cm is kept at a distance of 25cm in front of a concave mirror focal length is 15cm at distance will we get a clear image ? what will be the size & nature of the imag
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- An object of height 7cm is kept at a distance of 25cm in front of a concave mirror focal length is 15cm at distance will we get a clear image ? what will be the size & nature of the image?
- Size of object h =7cm
- Size of the object h=?
- Focal length f=−15cm
- Object distance u=−25cm
- Image distance v=?
Using mirror formula
1/f=1/v+1/u
1/15=1/v +1/-25
1/v= -5+3/75
v = −37.5cm
Hence, position of image at 37.5cm infront of the mirror
Magnification(M)= h1/h2
= -v/u
=37.5/-25
= -1.5
h1=1.5×h2
= −1.5×7=−10.5cm
Hence,size of image is −10.5cm.
Nature of image is real,inverted and magnified.
Answered by
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Answer:
An object of height 7cm is kept at a distance of 25cm in front of a concave mirror focal length is 15cm at distance will we get a clear image ? what will be the size & nature of the image.
Explanation:
Size of object h=7cm
Size of the object h =?
Focal length f =−15cm
Object distance u=−25cm
Image distance v=?
Hence, Position of image at 37.5cm infront of the mirror.
Hence,size of image is −10.5cm.
Nature of image is real,inverted and magnified.
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