The minimum magnifying power of a simple microscope is $19$ . What will be its maximum magnifying power?

18

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Solution

The correct option is D $20$
Given:
Minimum magnifying power $M P_{m i n} = 19$

The maximum and minimum magnifying powers of a simple microscope are given by,
$(M P)_{m a x} = 1 + \frac{D}{f}$
also,
$(M P)_{m i n} = \frac{D}{f}$

From the above equation, we can write,

$(M P)_{m a x} = 1 + (M P)_{m i n}$

$∴ (M P)_{m a x} = 1 + 19 = 20$

Hence, $(D)$ is the correct answer.

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The minimum magnifying power of a simple microscope is 19. What will be its maximum magnifying power?

The correct option is D 20Given: Minimum magnifying power MPmin=19 The maximum and minimum magnifying powers of a simple microscope are given by, (MP)max=1+Df also, (MP)min=Df From the above equation, we can write, (MP)max=1+(MP)min ∴(MP)max=1+19=20 Hence, (D) is the correct answer.

The minimum magnifying power of a simple microscope is $19$ . What will be its maximum magnifying power?