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QJEEM24Phb24f: JEE Main 2024 Physics - Class 12 JEEM24Phb24f Solution: A convex lens of focal length 40   cm forms an image of an …

A convex lens of focal length 40 cm forms an image of an extended source of light on a photoelectric cell. A current I is produced. The lens is replaced by another convex lens having the same diameter but focal length 20 cm. The photoelectric current now is :

Multiple Choice Options

  • A I2
  • B 4 I
  • C 2 I
  • D I

Step-by-Step Verified Solution

As amount of energy incident on cell is same so current will remain same.

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