The sun makes 0.5° angle on earth surface. Its image is made by convex lens of 50 cm focal length. The diameter of the image will be

Question

The sun makes 0.5° angle on earth surface. Its image is made by convex lens of 50 cm focal length. The diameter of the image will be (A) 5 mm (B) 4.36 mm (C) 7 mm (D) None of these

Tardigrade Admin · Accepted Answer

Diameter of image d=(0.5 × (π/180)) × 500=4.36 mm <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/70c9e9d99032c797e5a7eefada7c33ef-.png" />

Q. The sun makes $0. 5^{\circ}$ angle on earth surface. Its image is made by convex lens of $50 c m$ focal length. The diameter of the image will be

5 mm

4.36 mm

7 mm

None of these

Diameter of image
$d = (0.5 \times \frac{π}{180}) \times 500 = 4.36 mm$

Q. The sun makes 0.5∘ angle on earth surface. Its image is made by convex lens of 50cm focal length. The diameter of the image will be