Question Answers

Five identical bulb rated as 100 W, 250 volt are connected as shown in the figure with a battery of emf e = 260 V and internal resistance 20 ohm . Find power loss in the bulb A in watts. 250 volt are connected as shown in the figure with a battery of emf e [...]

Which of the following represents laughing gas (a) NO (b) N2O (c) NO2 (d) N2O3 Which of the following represents laughing gas (a) NO (b) N2O (c) NO2 (d) N2O3 November 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Which does not form complex (a) N (b) P (c) As (d) Bi Which does not form complex (a) N (b) P (c) As (d) Bi November 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Which of the following is not correct for N2O (a) It is called laughing gas (b) It is nitrous oxide Which of the following is not correct for N2O (a) It is called laughing gas (b) It is nitrous oxide November 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

The important method for the fixation of nitrogen is (a) Haber (b) Solvay (c) Deacon (d) Fischer method The important method for the fixation of nitrogen is (a) Haber (b) Solvay (c) Deacon (d) Fischer method November 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

A 500 W heater is designed to operate at 200 V potential difference. If it is connected across 160 V line, find the heat ( in Kj ) it will produce in 20 min. A 500 W heater is designed to operate at 200 V potential difference. If it is connected across 160 V line [...]

A light ray is incident perpendicular to one face of a 90∘ prism and is totally internally reflected at the glass-air interface. If the angle of reflection is 45∘, we conclude that the refractive index n as A light ray is incident perpendicular to one face of a 90∘ prism and is totally internally reflected [...]

Nitric acid oxidises phosphorus to (a) H2P2O7 9b) H3PO3 (c) P2O5 (d) H3PO4 Nitric acid oxidises phosphorus to (a) H2P2O7 9b) H3PO3 (c) P2O5 (d) H3PO4 November 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

A thin glass (refractive index 1.5) lens has optical power of -5 D in air. Its optical power in a liquid medium with refractive index 1.6 will be A thin glass (refractive index 1.5) lens has optical power of -5 D in air. Its optical power in a liquid medium with refractive index 1.6 will [...]

A fish looking up through the water sees the outside world contained in a circular horizon. If the refractive index of water is 4/3 and the fish is 12 cm below the surface of water, the radius of circle in centimetre is A fish looking up through the water sees the outside world contained in [...]