Home Back

JEE Mains 2020 Model Paper 4 New Pattern

© examsiri.com
Question : 25 of 75
 
Marks: +1, -0
Diameter of plano – convex lens is 6 cm and thickness at the centre is 3 mm. If speed of light in material of lens is 2 × 108 m/s , the focal length of the lens is in cm
  • Your Answer:
Validate
Go to Question:
Prev Question
Next Question