Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)

An ammeter and a voltmeter are connected in series to a battery of emf E=6.0V. When a certain resistance is connected in parallel with the voltmeter, the readding of the voltmeter decreases two times, whereas the reading of the ammeter increases the same number of times. Find the voltmeter reading after the connection of the [...]

In the circuit shown in figure the reading of ideal ammeter connected as shown is same with both switches open as with both closed. Then find the resistance R ( in ohm ). In the circuit shown in figure the reading of ideal ammeter connected as shown is same with both switches open as with [...]

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 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 [...]

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 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++ 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 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 In India at the occasion of marriages the fire works used give green flame. Which one of the following radicals may be present (a) [...]