Navigate

A thin convex lens of refractive index 1.5 has 20 cm focal length in air. If the lens

A thin convex lens of refractive index 1.5 has 20 cm focal length in air. If the lens is completely immersed in a liquid of refractive index 1.6, then its focal length will be

Options

(a) -160 cm
(b) -100 cm
(c) (+10 cm)
(d) (+ 100 cm)

Correct Answer:

-160 cm

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

AIIMS2012
admin:

Related Questions

  1. To obtain a p-type semiconductor, germanium must be doped with
  2. A straight conductor of length 0.4 m is moved with a speed of 7 ms⁻¹perpendicular
  3. Light with an energy flux of 25×10⁴ Wm⁻² falls on a perfectly reflecting surface
  4. If the velocity of an electron increases, then its de Broglie wavelength will
  5. If light emitted from sodium bulb is passed through sodium vapour,