The focal length of the lens is 10 cm. Calculate the power of the lens. State the unit.
first, convert to metres:10cm = 0.1mlens power = 1/focal lengthpower = 1/0.1 =10units are Dioptres, Dso the power of the lens is 10 D
AH
Related Physics GCSE answers
All answers ▸Energy generation can occur in both renewable and non-renewable ways. Part a) List three methods of non-renewable energy generation. Part b) List 2 methods of renewable energy generation. [Bonus] Part c) Why might it be beneficial to use renewable?
Explain Newton's laws of motion
A block of mass 5kg moving in a straight line at constant speed travels 50 metres in 14 seconds. Calculate the block's momentum.
Given an ammeter voltmeter a battery and a lamp how will you find the resistance of the lamp?