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QAIPMT-2006-Ph-2463: NEET 2006 Physics - Class 12 AIPMT-2006-Ph-2463 Solution: A convex lens and a concave lens each having same focal length…
A convex lens and a concave lens each having same focal length of 25 cm are put in contact to form a combination of lenses. The power in diopters of the combination is zero 25 50 infinite.
Multiple Choice Options
- A 2K
- B K + h _
- C K + E 0
- D K.
Step-by-Step Verified Solution
According to Einstein�s photoelectric equation,
K = h _ � E 0 ... (i)
and K' = h(2 _ ) � E 0 ... (ii)
= 2h _ � E 0 = h _ + h _ � E 0
K'= h _ + K [using (i)]