Question

The focal length of a huge concave mirror is 120 cm. A man is standing in front of it at a distance of 40 cm. What are the characteristics of his image in that mirror ?

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Answer 1

QUESTION :

The focal length of a huge concave mirror is 120 cm. A man is standing in front of it at a distance of 40 cm. What are the characteristics of his image in that mirror ?

ANSWER :

1. Image form in the mirror
2. Virtual image
3. Erected image
4. Enlarged image

Answer 2

Answer:

$f = 120 \\ u = 40 \\ v = \frac{f.u}{u - f} = \frac{120.40}{40 - 120} = - 60$

ɪᴍᴀɢᴇ:ɪᴍᴀɢɪɴᴀʀʏ

ᴜᴘʀɪɢʜᴛ

ᴍᴀɢɴɪғɪᴄᴀᴛɪᴏɴ

$- ( \frac{v}{u} ) = \frac{ - 60}{40} = 1.5$

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