Five persons and recorded object distance and image distance (v) using same convex lens having power +5D as (25,96), (30,62), (35,37), (45,35) and (50,32) respectively. Identify correct statement [2026]

Question

Five persons $P_{1}, P_{2}, P_{3}, P_{4}$ and $P_{5}$ recorded object distance $(u)$ and image distance (v) using same convex lens having power +5D as (25,96), (30,62), (35,37), (45,35) and (50,32) respectively. Identify correct statement [2026]

Smart Achievers · Accepted Answer

(2)

$P = + 5 D$

$\frac{1}{f} = 5 \Rightarrow f = 20 cm$

$\Rightarrow If object is between f and 2 f, image will be beyond 2 f and magnified.$

$\Rightarrow If object is beyond 2 f, image will be between f and 2 f and diminished.$

$Hence reading of P_{3} are incorrect.$

Solution

Q.
Five persons $P_{1}, P_{2}, P_{3}, P_{4}$ and $P_{5}$ recorded object distance $(u)$ and image distance (v) using same convex lens having power +5D as (25,96), (30,62), (35,37), (45,35) and (50,32) respectively. Identify correct statement [2026]

1 Readings recorded by $P_{3}$ and $P_{2}$ persons are incorrect

2 Readings recorded by $P_{3}$ person are incorrect

3 Readings recorded by $P_{4}$ and $P_{5}$ persons are incorrect

4 Readings recorded by all persons are correct

Ans.
(2)

$P = + 5 D$

$\frac{1}{f} = 5 \Rightarrow f = 20 cm$

$\Rightarrow If object is between f and 2 f, image will be beyond 2 f and magnified.$

$\Rightarrow If object is beyond 2 f, image will be between f and 2 f and diminished.$

$Hence reading of P_{3} are incorrect.$

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Solution

Q. Five persons P1,P2,P3,P4 and P5 recorded object distance (u) and image distance (v) using same convex lens having power +5D as (25,96), (30,62), (35,37), (45,35) and (50,32) respectively. Identify correct statement [2026]

1 Readings recorded by P3 and P2 persons are incorrect

2 Readings recorded by P3 person are incorrect

3 Readings recorded by P4 and P5 persons are incorrect