According to the Bohr model of the atom, an electron in the ground state A. radi

Question

According to the Bohr model of the atom, an electron in the ground state A. radiates electromagnetic energy continuously B, emits only spectral lines C. remains there forever D, can jump to another orbit if given enough energy A hydrogen atom is said to be in its ground state when its electron A. is at rest B is inside the nucleus C. is in the lowest energy level D. has escaped from the atom An atom emits a photon when one of its orbital electrons A. jumps from a higher to a lower energy level B. jumps from a lower to a higher energy level C. is removed by the photoelectric effect D. is struck by an X-ray Light of wavelength 5 times 10 m consists of photons whose energy is A. 1.1 times 10 J B. 1.3 times 10 J C. 4 times 10 J D. 1.7 times 10 J The frequency of an X-ray photon which has an energy of 6.6 times 10 J is A. 4.4 times 10 Hz B. 10 Hz C. 10 Hz D. 10 Hz The de Broglie wavelength of an electron whose speed is 10 m/s is A. 5.9 times 10 m B. 1.5 times 10 m C. 7.3 times 10^-12 m D. 1.4 times 10^11 m The speed of an electron whose de Broglie wavelength is 10 m is A. 66 times 10 m/s B. 3.8 times 10 m/s C. 7.3 times 10 m/s D. 10 m/s The fluid at the top of a container is A. under less pressure than the fluid at the bottom B. under the same pressure as the fluid at the bottom C. under more pressure than the fluid at the bottom D. any of these, depending upon the circumstances A cake of soap placed in a bathtub of water sinks. The buoyant force on the soap A. is 0 B. is equal to its weight C. is less than its weight D. is more than its weight A 200-g piston rests on a sample of a gas in a cylinder whose cross-sectional area is 15 m. The pressure the piston exerts on the gas is A. 0.13 Pa B. 1.3 Pa C. 13 Pa D. 7.5 Pa

Explanation / Answer

41. According to the Bohr model of the atom, an electron in the ground state has minimum energy, if some extra energy is given to the electron then it will jump to other orbit or higher energy level. So option D is correct.

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