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A concave mirror produces an image of 20 cm height which is five times magnified. The height of the object is
  • a)
    10 cm
  • b)
    2 cm
  • c)
    4 cm
  • d)
    5 cm
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
A concave mirror produces an image of 20 cm height which is five times...
Given that u = - 20 cm and m = - 5

- 20 = - v/-5
v = - 4
Thus, the height of the object is 4 cm.
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Community Answer
A concave mirror produces an image of 20 cm height which is five times...
Given:
Height of the image = 20 cm
Magnification = 5

To find:
Height of the object

Using the formula for magnification:
Magnification (M) = Height of the image (hʹ) / Height of the object (h)

Rearranging the formula to find the height of the object:
h = hʹ / M

Calculation:
Substituting the given values:
h = 20 cm / 5
h = 4 cm

Therefore, the height of the object is 4 cm.

Answer: The height of the object is 4 cm.
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