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

The explosion of a fire cracker in the air at a height of 40 m produces a 100 dB sound level at ground below. What is the instantaneous total radiated power ? Assuming that it The explosion of a fire cracker in the air at a height of 40 m produces a 100 dB sound [...]

The capacitor each having capacitance C = 2 muF are connected with a battery of emf 30 V as shown in figure. When the switch S is closed. Find The capacitor each having capacitance C = 2 muF are connected with a battery of emf 30 V as shown in figure. When the switch S [...]

Figure shows a network of seven capacitors . If charge on 5 muF capacitor is 10 muC , find the potential difference between points A and C Figure shows a network of seven capacitors . If charge on 5 muF capacitor is 10 muC find the potential difference between points A and C November 7, [...]

What charges will flow through section B of the circuit in the direction shown when switch S is closed. What charges will flow through section B of the circuit in the direction shown when switch S is closed. November 7, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

A person wears a hearing aid that uniformly increases the sound level of all audible frequencies of sound by 30.0 dB. The hearing aid picks up sound having a frequency of 250 Hz A person wears a hearing aid that uniformly increases the sound level of all audible frequencies of sound by 30.0 dB. The [...]

Four capacitors are connected as hsown in figure to a 30 V battery. Find the potential difference between points a and b. Four capacitors are connected as hsown in figure to a 30 V battery. Find the potential difference between points a and b. November 7, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]

If the intensity is increased by a factor of 20, by how many decibels is the sound level increased ? by how many decibels is the sound level increased ? If the intensity is increased by a factor of 20 November 7, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

A tuning fork force generates a sound of frequency f and resonates with the air column closed at one end by a tube of length l. If air column vibrates with its fundamental mode A tuning fork force generates a sound of frequency f and resonates with the air column closed at one end by [...]

Find the capacitance between A and B if two dielectric slabs (each of thickness d) of dielectric constants K1 and K2 and areas K1 and K2 and inserted between the plates of a parallel plate capacitor of plate area A. Find the charge supplied by the battery in the arrangement as shown in figure. November [...]

Speed of sound in hydrogen at 0 C is 1200 m/s. When some amount of oxygen is mixed with hydrogen, the speed decreases to 500 m/s. Determining the ratio of hydrogen and oxygen Speed of sound in hydrogen at 0 C is 1200 m/s. When some amount of oxygen is mixed with hydrogen the speed [...]