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GUJCET · Physics · Ray Optics and Optical Instruments
An object is placed at 10 cm in front of a concave mirror of focal length 15 cm. The image formed will be ___________.
- A virtual, erect and magnified
- B real, inverted and diminished
- C virtual, erect and diminished
- D real, inverted and magnified
Answer & Solution
Correct Answer
(A) virtual, erect and magnified
Step-by-step Solution
Detailed explanation
\( \frac{1}{v} = \frac{1}{f} - \frac{1}{u} = \frac{1}{-15 \text{ cm}} - \frac{1}{-10 \text{ cm}} = \frac{-2+3}{30 \text{ cm}} = \frac{1}{30 \text{ cm}} \) \( v = 30 \text{ cm} \)
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