Question
Lens is made up of –
Solution
Flint glass is optical glass that has relatively high refractive index and low Abbe number (high dispersion). A concave lens of flint glass is commonly combined with a convex lens of crown glass to produce an achromatic doublet lens because of their compensating optical properties, which reduces chromatic aberration (colour defects).
The term 'Carbon Credit‘ is associated with
Which planet is the largest in the solar system?
Which of the following is not a physical change?
Metals are good conductors of electricity because –
Which planet is known as the Red Planet?
A rod of length 2 m expands by 2 mm when heated. If coefficient of linear expansion is 1 x 10-5 / 0C, find temperature change.
A mass m moves in a vertical circle of radius R under gravity. What is the minimum mechanical energy required to complete the circle?
Which of the following is NOT a method to improve crop yields in India?
Calculate the work done when a force of 10 N moves an object 5 m at 60° angle to direction of force.
A battery of emf 12 V and internal resistance 4 ohm is connected to a resistor. If the current in the circuit is 0.6 A, what is the resistance of the re...