Cengage NEET by C.P Singh
The angular speed of the electron in the nth Bohr orbit of the hydrogen atom is proportional to
09
Jun
The angular speed of the electron in the nth Bohr orbit of the hydrogen atom is proportional to The angular speed of the electron in the nth Bohr orbit of the hydrogen atom is proportional to June 9, 2021 Category: Cengage NEET by C.P Singh , Chapter 15 - Properties of Matter ,
As one considers orbits with higher value of n in a hydrogen atom, the electron potential energy of the atom
09
Jun
As one considers orbits with higher value of n in a hydrogen atom, the electron potential energy of the atom As one considers orbits with higher value of n in a hydrogen atom the electron potential energy of the atom June 9, 2021 Category: Cengage NEET by C.P Singh , Chapter 15 - Properties of [...]
The energy of an atom (or ion) in its ground state is – 54.4 eV. It may be
09
Jun
The energy of an atom (or ion) in its ground state is – 54.4 eV. It may be The energy of an atom (or ion) in its ground state is - 54.4 eV. It may be June 9, 2021 Category: Cengage NEET by C.P Singh , Chapter 15 - Properties of Matter ,
A point source of light is placed at a distance of 2f from a converging lens of focal length f. The intensity on the other side of the lens is maximum at a distance
06
Dec
A point source of light is placed at a distance of 2f from a converging lens of focal length f. The intensity on the other side of the lens is maximum at a distance A point source of light is placed at a distance of 2f from a converging lens of focal length f. The [...]
When a biconvex lens of glass having refractive index 1.47 is dipped in a liquid, it acts as a plane sheet of glass. This implies that
06
Dec
When a biconvex lens of glass having refractive index 1.47 is dipped in a liquid, it acts as a plane sheet of glass. This implies that it acts as a plane sheet of glass. This implies that When a biconvex lens of glass having refractive index 1.47 is dipped in a liquid December 6, 2020 [...]
If two bulbs of 25W and 100W rated at 220V are connected in series across a 440V supply,
06
Dec
If two bulbs of 25W and 100W rated at 220V are connected in series across a 440V supply, If two bulbs of 25W and 100W rated at 220V are connected in series across a 440V supply December 6, 2020 Category: Cengage NEET by C.P Singh , Chapter 18 - Temperature and Thermal Expansion , Part [...]
An electric kettle of 1200Whas 1 kg water at 20∘C. The water equivalent of the kettle is 500g. The time required to heat water from 20∘→100∘C will be (specific heat of water = 4200J/kg∘C).
06
Dec
An electric kettle of 1200Whas 1 kg water at 20∘C. The water equivalent of the kettle is 500g. The time required to heat water from 20∘→100∘C will be (specific heat of water = 4200J/kg∘C). An electric kettle of 1200Whas 1 kg water at 20∘C. The water equivalent of the kettle is 500g. The time required [...]
A 500 W heating unit is designed to operate on a 115 V line. If line voltage drops to 110 V , the percentage drop in heat output will be:
06
Dec
A 500 W heating unit is designed to operate on a 115 V line. If line voltage drops to 110 V , the percentage drop in heat output will be: A 500 W heating unit is designed to operate on a 115 V line. If line voltage drops to 110 V the percentage drop in [...]
Consider a system of three charges 3/q, 3/q and − 3/2q placed at points A, B and C, respectively, as shown in the figure. Take O to be the centre of the circle of radius R and angle CAB = 60^o
06
Dec
Consider a system of three charges 3/q, 3/q and − 3/2q placed at points A, B and C, respectively, as shown in the figure. Take O to be the centre of the circle of radius R and angle CAB = 60^o 3/q and − 3/2q placed at points A as shown in the figure. Take [...]
Charges +q, -q, +q, and -q are placed at the corner A, B, C and D respectively of a square of a side a. The potential energy of the system is 1/4pie€0 times
06
Dec
Charges +q, -q, +q, and -q are placed at the corner A, B, C and D respectively of a square of a side a. The potential energy of the system is 1/4pie€0 times -q and -q are placed at the corner A B C and D respectively of a square of a side a. The [...]