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Which of the following is used in optical fibres ? Which of the following is used in optical fibres ? November 18, 2020 Category: Chapter 16 - Optics , JEE Mains Physics 2002-2019 Solved Video Solutions ,

To get three images of a single object, one should have two plane mirrors at an angle of one should have two plane mirrors at an angle of To get three images of a single object November 18, 2020 Category: Chapter 16 - Optics , JEE Mains Physics 2002-2019 Solved Video Solutions ,

The image formed by an objective of a compound microscope is The image formed by an objective of a compound microscope is November 18, 2020 Category: Chapter 16 - Optics , JEE Mains Physics 2002-2019 Solved Video Solutions ,

The earth radiates in the infra-red region of the spectrum. The spectrum is correctly given by The earth radiates in the infra-red region of the spectrum. The spectrum is correctly given by November 18, 2020 Category: Chapter 16 - Optics , JEE Mains Physics 2002-2019 Solved Video Solutions ,

A plano convex lens of refractive index 1.5 and radius of curvature 30cm. Is silvered at the curved surface. Now this lens has been used to form the image of an object. At what distance from this lens an object be placed in order to have a real image of size of the object. The [...]

Which oxide is colourless and neutral (a) N2O (b) N2O3 (c) N2O4 (d) N2O5 Which oxide is colourless and neutral (a) N2O (b) N2O3 (c) N2O4 (d) N2O5 November 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

A capacitor of capacitance 5μF is connected to a source of constant emf of 200V,Then switch was shifted to contact 2 from contact 1. Find the amount of heat generated in the 400Ω resistance. A capacitor of capacitance 5μF is connected to a source of constant emf of 200V Then switch was shifted to contact [...]

Phosphorus is manufactured by heating in an electric furnace a mixture of (a) Bone ash and coke (b) Bone ash and silica (c) Bone ash, silica and coke Phosphorus is manufactured by heating in an electric furnace a mixture of (a) Bone ash and coke (b) Bone ash and silica (c) Bone ash silica and [...]

A storage battery with emfE=2.6V loaded with an external resistance produces a current I=1.0A. In this case the potential difference between the terminals of the storage battery equals V=2.0V. Find teh thermal power generated in the battery and the power develop in it electric forces. Each of three resistors in figure has a resistance of [...]

A battery has an open circuit potential difference of 6V between its terminals. When a load resistance of 60Ω is connected across the battery,the total power supplied by the bttery is 0.4W. What should be the load resistance R, so that maximum power will be dissipated in R. Calculated this power. What is the total [...]