Question Answers
Sahay Sir > Question Answers
A heating coil is rated 100 W , 220 V . the coil is cut in half and two pieces are joined in parallel to the same source. Now what is the energy ( in x 10 ^2 J ) liberated per second ?
18
Nov
A heating coil is rated 100 W , 220 V . the coil is cut in half and two pieces are joined in parallel to the same source. Now what is the energy ( in x 10 ^2 J ) liberated per second ? 220 V . the coil is cut in half and two [...]
Cyanamide process is used in the formation of (a) N2 (b) HNO3 (c) NH3 (d) PH3
18
Nov
Cyanamide process is used in the formation of (a) N2 (b) HNO3 (c) NH3 (d) PH3 Cyanamide process is used in the formation of (a) N2 (b) HNO3 (c) NH3 (d) PH3 November 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
A green light is incident from the water to the air – water interface at the critical angle (θ). Select the correct statement.
18
Nov
A green light is incident from the water to the air – water interface at the critical angle (θ). Select the correct statement. A green light is incident from the water to the air - water interface at the critical angle (θ). Select the correct statement. November 18, 2020 Category: Chapter 16 - Optics , [...]
A thin convex lens made from crown glass (μ=3/2)has focal length f. When it is measured in two different liquids having refractive indices 4/3 and 5/3. It has the focal lengths f1 and f2 respectively. The correct relation between the focal length is
18
Nov
A thin convex lens made from crown glass (μ=3/2)has focal length f. When it is measured in two different liquids having refractive indices 4/3 and 5/3. It has the focal lengths f1 and f2 respectively. The correct relation between the focal length is In figure the number of reflections it makes before emerging form the [...]
On a hot summer night, the refractive index of air is smallest near the ground and increases with height from the ground. When a light beam is directed horizontally, the Huygens principle leads us to conclude that as it travels, the light beam
18
Nov
On a hot summer night, the refractive index of air is smallest near the ground and increases with height from the ground. When a light beam is directed horizontally, the Huygens principle leads us to conclude that as it travels, the light beam On a hot summer night the Huygens principle leads us to conclude [...]
In an experiment for determination of refractive index of glass of a prism by i−δ, plot it was found that the ray incident at angle 35∘, suffers a deviation of 40∘ and that it emerges at angle 79∘. In that case which of the following is closest to the maximum possible value of the refractive index?
18
Nov
In an experiment for determination of refractive index of glass of a prism by i−δ, plot it was found that the ray incident at angle 35∘, suffers a deviation of 40∘ and that it emerges at angle 79∘. In that case which of the following is closest to the maximum possible value of the refractive [...]
Tags:
In an experiment for determination of refractive index of glass of a prism by i−δ ,
plot it was found that the ray incident at angle 35∘ ,
suffers a deviation of 40∘ and that it emerges at angle 79∘. In that case which of the following is closest to the maximum possible value of the refractive index? ,
A hydride of nitrogen which is acidic is (a) NH3 (b) N2H4 (c) N2H2 (d) N3H
18
Nov
A hydride of nitrogen which is acidic is (a) NH3 (b) N2H4 (c) N2H2 (d) N3H A hydride of nitrogen which is acidic is (a) NH3 (b) N2H4 (c) N2H2 (d) N3H November 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Consider two identical cells each of emf E and internal resistance r connected to a load resistance R.
18
Nov
Consider two identical cells each of emf E and internal resistance r connected to a load resistance R. Consider two identical cells each of emf E and internal resistance r connected to a load resistance R. November 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
The chemical formula of ‘tear gas’ is (a) COCl2 (b) CO2 (c) Cl2 (d) CCl3NO2
18
Nov
The chemical formula of ‘tear gas’ is (a) COCl2 (b) CO2 (c) Cl2 (d) CCl3NO2 The chemical formula of 'tear gas' is (a) COCl2 (b) CO2 (c) Cl2 (d) CCl3NO2 November 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
In the circuit shown in figure , battery , ammeter , and voltmeter are ideal and the switch S is initially closed as shown. when switch S is opened, match the parameter in column I with the effects in column II.
18
Nov
In the circuit shown in figure , battery , ammeter , and voltmeter are ideal and the switch S is initially closed as shown. when switch S is opened, match the parameter in column I with the effects in column II. ammeter and voltmeter are ideal and the switch S is initially closed as shown. [...]