Navigate

Two thin lenses when placed in contact, then the power of combination is +10 D.

Two thin lenses when placed in contact, then the power of combination is +10 D. If they are kept 0.25 m apart, then the power reduces to +6 D. The focal lengths of the lenses (in m) will be

Options

(a) 0.5 and 0.125
(b) 0.5 and 0.75
(c) 0.125 and 0.75
(d) both have the same focal length 1.25

Correct Answer:

0.5 and 0.125

Explanation:

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

BCE2012
admin:

Related Questions

  1. A thermocouple is made from two metals, antimony and bismuth. If one junction
  2. A nucleus with mass number 220 initially at rest emits an α-particle. If the Q-value
  3. In an A.C circuit of capacitance the current from potential is
  4. A disc of mass 100 g is kept floating horizontally in air by firing bullets
  5. The electric field at a distance 3R / 2 from the centre of a charged conducting