Home › ICSE Class 10 › physics › Refraction through a Lens › Image distance v = +30 cm and object distance u …
Image distance v = +30 cm and object distance u = -10 cm. Magnification is:
A+3
B+0.33
C-3
D-0.33
Answer & Solution
Correct answer: C. -3
1. m = v / u = 30 / (-10).
2. m = -3.
3. The negative sign indicates an inverted image.
4. The magnitude 3 means it is three times the object size.
_Source: Selina Concise Physics ICSE Class 10, Ch 5 'Refraction through a Lens' (aplustopper.com extract)_
Related questions
Linear magnification produced by a converging lens for an object at 2F is:Cross-section of a convex lens looks like:Two lenses of powers +3 D and -5 D are placed in contact. The combination:A virtual image:Image formed by a convex lens with object at infinity is:If both surfaces of a thin lens have equal radii of curvature R, the lens is called:An object is placed beyond 2F from a convex lens. Image position is:Which is the principal use of a concave lens?