Noise is measured in –
A thin converging lens of focal length 20 cm is placed at the origin. An object is placed at x = –30 cm. A plane mirror is placed at x = +40 cm. The ...
A myopic person has a power of 1.25 dioptre, what is the local length and nature of his lens?
Consider the reaction-
Copper sulphate solution (blue) + Iron → Iron sulphate soluton + Copper What is the colour of the iron sulphate solution?
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.
Which among the following are unisexual flowers?
What is the name of China's recently launched largest amphibious assault vessel?
Which of the following is a physical change?
Biogas which is used for cooking purpose is a mixture of which of the following two components?
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