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Concave lens possesses at least one surface that curves inwards. It is a diverging lens, spreading out those light rays that have been refracted through it. A concave lens is thinner at its centre than at its edges, and is used to correct short-sightedness (myopia). After light rays have passed through the lens, they appear to come from a point called the principal focus. The image formed by a concave lens is virtual, upright, and smaller than the object, and it cannot be projected onto a screen.
Which gas is responsible for the ozone layer's depletion?
Which of the following pairs of vector and disease is/are correctly matched?
Vector Disease
Ohm’s law obeyed in -
A day is considered a rainy day when it receives a rainfall of:
Consider the reaction-
Copper sulphate solution (blue) + Iron → Iron sulphate soluton + Copper What is the colour of the iron sulphate solution?
Which among the following is necessarily present in an alloy for it to be referred as ‘Amalgam’?
Which device is used to measure atmospheric pressure?
The Aedes Aegypti mosquito can NOT act as a vector for -
Which of the following gases is also known as a 'Stranger' gas?
What is the atomic mass of carbon?
