Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
H20 is hard if it contains (a) NaHCO3 (b) MgSO4 (c) KCl (d) NaCl
13
Nov
H20 is hard if it contains (a) NaHCO3 (b) MgSO4 (c) KCl (d) NaCl H20 is hard if it contains (a) NaHCO3 (b) MgSO4 (c) KCl (d) NaCl November 13, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Synthetic detergents are more effective in hard water than soaps because (a) They are highly soluble in water (b) Their Ca ++ and Mg ++ salts are water soluble
13
Nov
Synthetic detergents are more effective in hard water than soaps because (a) They are highly soluble in water (b) Their Ca ++ and Mg ++ salts are water soluble Synthetic detergents are more effective in hard water than soaps because (a) They are highly soluble in water (b) Their Ca ++ and Mg ++ salts [...]
The alum used for purifying water is (a) Ferric alum (b) Chrome alum (c) Potash alum (d) Ammonium alum
13
Nov
The alum used for purifying water is (a) Ferric alum (b) Chrome alum (c) Potash alum (d) Ammonium alum The alum used for purifying water is (a) Ferric alum (b) Chrome alum (c) Potash alum (d) Ammonium alum November 13, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
In the experiment of calibration of voltmeter, a 1.1 volt standard cell gets balanced at 440 cm length of the wire. The balancing length corresponding to a potential difference between the ends of a resistance comes out to be 190 cm. A voltmeter shows 0.5 volt for this potential difference. The error in the reading of voltmeter will be
13
Nov
In the experiment of calibration of voltmeter, a 1.1 volt standard cell gets balanced at 440 cm length of the wire. The balancing length corresponding to a potential difference between the ends of a resistance comes out to be 190 cm. A voltmeter shows 0.5 volt for this potential difference. The error in the reading [...]
Two unknown resistance X and Y are connected to left and right gaps of a meter bridge and the balancing point is obtained at 80 cm from left. When a 100 Ω resisance is connected in parallel to x, balance point is 20 cm from left. The values of X and Y respectively are
13
Nov
Two unknown resistance X and Y are connected to left and right gaps of a meter bridge and the balancing point is obtained at 80 cm from left. When a 100 Ω resisance is connected in parallel to x, balance point is 20 cm from left. The values of X and Y respectively are balance [...]
The low density of ice compared to water is due to (a) Induced dipole-induced dipole interactions (b) Dipole-induced dipole interaction (c) Hydrogen bonding interactions
13
Nov
The low density of ice compared to water is due to (a) Induced dipole-induced dipole interactions (b) Dipole-induced dipole interaction (c) Hydrogen bonding interactions The low density of ice compared to water is due to (a) Induced dipole-induced dipole interactions (b) Dipole-induced dipole interaction (c) Hydrogen bonding interactions November 13, 2020 Category: Uncategorised (JEE Advanced [...]
What is formed when calcium carbide reacts with heavy water (a) C2D2 (b) CaD2 (c) Ca2D20 (d) CD2
13
Nov
What is formed when calcium carbide reacts with heavy water (a) C2D2 (b) CaD2 (c) Ca2D20 (d) CD2 What is formed when calcium carbide reacts with heavy water (a) C2D2 (b) CaD2 (c) Ca2D20 (d) CD2 November 13, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
The variation of potential difference V with length l in case of two potentiometers X and Y is as shows in Fig. 6.21. Which of these two will you perfer for comparing the emfs of the two cells and why ?
13
Nov
The variation of potential difference V with length l in case of two potentiometers X and Y is as shows in Fig. 6.21. Which of these two will you perfer for comparing the emfs of the two cells and why ? In the circuit shown below the key is pressed at time t = 0. [...]
In the circuit shown, a meter bridge is in its balanced state. The meter bridge wire has a resistance .1ohm/cm. The value of unknown resistance X and the current drawn from the battery of negligible resistance is
13
Nov
In the circuit shown, a meter bridge is in its balanced state. The meter bridge wire has a resistance .1ohm/cm. The value of unknown resistance X and the current drawn from the battery of negligible resistance is a meter bridge is in its balanced state. The meter bridge wire has a resistance .1ohm/cm. The value [...]
By which of the following process permanent hardness of water can be removed, by adding (a) Sodalime (b) Sodiumbicarbonate (c) Washing soda
13
Nov
By which of the following process permanent hardness of water can be removed, by adding (a) Sodalime (b) Sodiumbicarbonate (c) Washing soda by adding (a) Sodalime (b) Sodiumbicarbonate (c) Washing soda By which of the following process permanent hardness of water can be removed November 13, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]