Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsReflection at curved surfaceEasy2 minPYQ_2020

PhysicsEasynumerical

A point object is placed at a distance of $10 cm$ from a concave mirror and its real image is formed at a distance of $20 cm$ from the concave mirror. If the object is moved by $0 .1 cm$ towards the mirror, calculate the shift of image in $mm$ .

Answer:

-4.00

Solution:

$dv = - (\frac{v^{2}}{u^{2}}) du = - \frac{{(- 20)}^{2}}{{(- 10)}^{2}} \times 0.1 = - 0.4 cm=-4 mm$

Subject:PhysicsTopic:Geometrical OpticsSubtopic:Reflection at curved surface

⏱ 2mℹ️ Source: PYQ_2020

Doubts & Discussion

Loading discussions...