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The wire of flash bulb is made of (a) Mg (b) Cu (c) Ba (d) Ag
15
Nov
The wire of flash bulb is made of (a) Mg (b) Cu (c) Ba (d) Ag The wire of flash bulb is made of (a) Mg (b) Cu (c) Ba (d) Ag November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Portland cement is manufactured by using (a) Lime stone, clay and sand (b) Lime stone, gypsum and sand (c) Lime stone, gypsum and alumina
15
Nov
Portland cement is manufactured by using (a) Lime stone, clay and sand (b) Lime stone, gypsum and sand (c) Lime stone, gypsum and alumina clay and sand (b) Lime stone gypsum and alumina gypsum and sand (c) Lime stone Portland cement is manufactured by using (a) Lime stone November 15, 2020 Category: Uncategorised (JEE Advanced [...]
The current in a conductor and the potential difference across its ends are measured by an ammeter and a voltmeter.The meters draw negligible current.The ammeter is accurate but the vlotmeter has a zero error(that is ,it does not read zero when no potential difference is applied).Calculate the zero error if the readings for two different conditions are 1.75 A, 14.4 V and 2.75 a, 22.4 V.
15
Nov
The current in a conductor and the potential difference across its ends are measured by an ammeter and a voltmeter.The meters draw negligible current.The ammeter is accurate but the vlotmeter has a zero error(that is ,it does not read zero when no potential difference is applied).Calculate the zero error if the readings for two different [...]
In the circuit shown in figure the reading of an ideal ammeter is the same with both switches open as with both closed then find the resistance R (in k ohm ).
15
Nov
In the circuit shown in figure the reading of an ideal ammeter is the same with both switches open as with both closed then find the resistance R (in k ohm ). In the circuit shown in figure the reading of an ideal ammeter is the same with both switches open as with both closed [...]
Which one of the following is most basic (a) Al2O3 (b) MgO (c) SiO2 (d) P2O5
15
Nov
Which one of the following is most basic (a) Al2O3 (b) MgO (c) SiO2 (d) P2O5 Which one of the following is most basic (a) Al2O3 (b) MgO (c) SiO2 (d) P2O5 November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Which of the following ions forms highly soluble hydroxide in water (a) K+ (b) Zn++ (c) Al+++ (d) Ca++
15
Nov
Which of the following ions forms highly soluble hydroxide in water (a) K+ (b) Zn++ (c) Al+++ (d) Ca++ Which of the following ions forms highly soluble hydroxide in water (a) K+ (b) Zn++ (c) Al+++ (d) Ca++ November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Gypsum CaSO4.2H2O on heating to about 120 C forms a compound which has the chemical composition represented by (a) CaSO4 (b) 2CaSO4.H20 (c) CaSO4.H20
15
Nov
Gypsum CaSO4.2H2O on heating to about 120 C forms a compound which has the chemical composition represented by (a) CaSO4 (b) 2CaSO4.H20 (c) CaSO4.H20 Gypsum CaSO4.2H2O on heating to about 120 C forms a compound which has the chemical composition represented by (a) CaSO4 (b) 2CaSO4.H20 (c) CaSO4.H20 November 15, 2020 Category: Uncategorised (JEE Advanced [...]
In India at the occasion of marriages, the fire works used give green flame. Which one of the following radicals may be present (a) Na (b) K (c) Ba (d) Ca
15
Nov
In India at the occasion of marriages, the fire works used give green flame. Which one of the following radicals may be present (a) Na (b) K (c) Ba (d) Ca In India at the occasion of marriages the fire works used give green flame. Which one of the following radicals may be present (a) [...]
Statement I: A light ray is incident on a glass slab. Some portion of it is reflected and some is refracted. Refracted and reflected rays are always perpendicular to each other. Statement II: Angle of incidence is equal to angle of reflection.
15
Nov
Statement I: A light ray is incident on a glass slab. Some portion of it is reflected and some is refracted. Refracted and reflected rays are always perpendicular to each other. Statement II: Angle of incidence is equal to angle of reflection. A convex mirror of radius of curvature 1.6 m has an object placed [...]
STATEMENT-1 We cannot produce a real image by plane of convex mirror under any circumstances. STATEMENT-2 The focal length of a convex mirror is always taken as positive.
15
Nov
STATEMENT-1 We cannot produce a real image by plane of convex mirror under any circumstances. STATEMENT-2 The focal length of a convex mirror is always taken as positive. STATEMENT-1 We cannot produce a real image by plane of convex mirror under any circumstances. STATEMENT-2 The focal length of a convex mirror is always taken as [...]