A convex lens has power P. It is cut into two halves along its principal axis. Further one piece (out of the two halves) is cut into two halves perpendicular to the principal axis (as shown in figure). Choose the incorrect option for the reported pieces.

Question

A convex lens has power P. It is cut into two halves along its principal axis. Further one piece (out of the two halves) is cut into two halves perpendicular to the principal axis (as shown in figure). Choose the incorrect option for the reported pieces. (A) Power of L 1=( P /2) (B) Power of L 2=( P /2) (C) Power of L 3=( P /2) (D) Power of L 1= P

Tardigrade Admin · Accepted Answer

Correct answer is (a) Power of L 1=( P /2)

Q. A convex lens has power P. It is cut into two halves along its principal axis. Further one piece (out of the two halves) is cut into two halves perpendicular to the principal axis (as shown in figure). Choose the incorrect option for the reported pieces.

Power of $L_{1} = \frac{P}{2}$

Power of $L_{2} = \frac{P}{2}$

Power of $L_{3} = \frac{P}{2}$

Power of $L_{1} = P$

Correct answer is (a) Power of $L_{1} = \frac{P}{2}$

Q. A convex lens has power P. It is cut into two halves along its principal axis. Further one piece (out of the two halves) is cut into two halves perpendicular to the principal axis (as shown in figure). Choose the incorrect option for the reported pieces.

Power of L1​=2P​

Power of L2​=2P​

Power of L3​=2P​

Power of L1​=P

Correct answer is (a) Power of L1​=2P​

Power of $L_{1} = \frac{P}{2}$

Power of $L_{2} = \frac{P}{2}$

Power of $L_{3} = \frac{P}{2}$

Power of $L_{1} = P$

Correct answer is (a) Power of $L_{1} = \frac{P}{2}$