A point object is placed as shown. The two pieces are of the same lens of focal length 10 cm . Find the distance (in cm ) between the two images formed by two pieces of the lens.

Question

A point object is placed as shown. The two pieces are of the same lens of focal length 10 cm . Find the distance (in cm ) between the two images formed by two pieces of the lens. <img class="img-fluid question-image" alt="Question" src="https://cdn.tardigrade.in/q/nta/p-6mnbrcxiviazxpzn.jpg" /> (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

The distance of image formed by each piece can be calculated by

\frac{1}{f} = \frac{1}{v} - \frac{1}{u}

\frac{1}{10} = \frac{1}{v} - \frac{1}{- 15}

\Rightarrow v = 30 c m

∣ m ∣ = \frac{30}{15} = 2

Q. A point object is placed as shown. The two pieces are of the same lens of focal length 10cm . Find the distance (in cm ) between the two images formed by two pieces of the lens.

The distance of image formed by each piece can be calculated by f1​=v1​−u1​ 101​=v1​−−151​ ⇒v=30cm ∣m∣=1530​=2

Q. A point object is placed as shown. The two pieces are of the same lens of focal length $10 c m$ . Find the distance (in $c m$ ) between the two images formed by two pieces of the lens.

The distance of image formed by each piece can be calculated by
$\frac{1}{f} = \frac{1}{v} - \frac{1}{u}$
$\frac{1}{10} = \frac{1}{v} - \frac{1}{- 15}$
$\Rightarrow v = 30 c m$
$∣ m ∣ = \frac{30}{15} = 2$