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Maximum density of H2O is at the temperature. Maximum density of H2O is at the temperature : September 6, 2021 Category: Cengage NEET by C.P Singh , Chapter 18 - Temperature and Thermal Expansion , Part 1 ,

The reading of Centigrade thermometer coincides with that of Fahrenheit thermometer in a liquid. The temperature of the liquid is The reading of Centigrade thermometer coincides with that of Fahrenheit thermometer in a liquid. The temperature of the liquid is September 6, 2021 Category: Cengage NEET by C.P Singh , Chapter 18 - Temperature and [...]

A system X is neither in thermal equilibrium with Y nor with Z. The systems Y and Z: A system X is neither in thermal equilibrium with Y nor with Z. The systems Y and Z: September 6, 2021 Category: Cengage NEET by C.P Singh , Chapter 18 - Temperature and Thermal Expansion , Part [...]

If the temperature of a patient is 40^o C, his temperature in the Fahrenheit scale will be : his temperature in the Fahrenheit scale will be : If the temperature of a patient is 40^o C September 6, 2021 Category: Cengage NEET by C.P Singh , Chapter 18 - Temperature and Thermal Expansion , Part [...]

The radius of hydrogen atom in its ground state is 5.3×10^−11m. After collision with an electron it is found to have a radius of 21.2×10^−11m. The principal quantum number of the final state of the atom is. In terms of Rydberg's constant R the wave number of the first Balmer line is June 9, 2021 [...]

A photon of energy 10.2 eV corresponds to light of wavelength λ0. Due to an electron transition from n=2 to n=1 in a hydrogen atom, light of wavelength λ is emitted. If we take into account the recoil of the atom when the photon is emitted. A photon of energy 10.2 eV corresponds to light [...]

An electron with kinetic energy =E eV collides with a hydrogen atom in the ground state. The collision will be elastic An electron with kinetic energy =E eV collides with a hydrogen atom in the ground state. The collision will be elastic June 9, 2021 Category: Cengage NEET by C.P Singh , Chapter 15 - [...]

An electron with kinetic energy 5eV is incident on a hydrogen atom in its ground state. The collision An electron with kinetic energy 5eV is incident on a hydrogen atom in its ground state. The collision June 9, 2021 Category: Cengage NEET by C.P Singh , Chapter 15 - Properties of Matter ,

A beam of ultraviolet light of all wavelength passes through hydrogen gas at room temperature, in the x-direction. Assume that all photons emitted due to electron transitions inside the gas emerge in the y-direction. Let A and B denote the lights emerging from the gas in the x-and y-directions respectively. A beam of ultraviolet light [...]

Whenever a hydrogen atom emits a photon in the Balmer series, 1. it may emit another photon in the Balmer series 2. it must emit another photon in the Lyman series 3. the second photon, if emitted, will have a wavelength of about 122 nm 4. it may emit a second photon, but the wavelength [...]