Atomic Structur...

Direction (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.
 

Q. FM radio broadcasts at 900 kHz. What wavelength does this corresponds to?

The nucleus of helium contains

Moseley’s equation is represented as   where, a and b are constants.

Q. If OA = 1, then atomic number of the element showing frequency of 400 Hz is

A gas absorbs photon of wavelength 355 nm and emits at two wavelengths. If one of the emissions is at 680 nm, the other is at

[AlEEE 2011]

The longest wavelength of light capable of breaking a single (Cl — Cl) bond in Cl₂ is if 

[AlEEE 2010]

Which of the following conclusions could not be derived from Rutherford’s α-particle scattering experiment?

Which of the following statements is not correct about the characteristics of cathode rays?

Energy of a mole of radio wave photons with a frequency of 909 kHz is

Direction (Q. Nos. 9 and 10) This section contains a paragraph, wach describing  theory, experiments, data etc. three Questions related to paragraph have been  given.Each question have only one correct answer among the four given  ptions  (a),(b),(c),(d)

A hypothetical electromagnetic wave is pictured here.

Q. Energy associated with this wave is

A hypothetical electromagnetic wave is pictured here.

Q. A standing wave in a string 42 cm long has a total of six nodes (including those at the ends). Wavelength of the standing wave is

Direction (Q. Nos. 11) Choice the correct combination of elements and column I and coloumn II are given as option (a), (b), (c) and (d), out of which ONE option is correct.

Q. The colours of visible light are at different wavelength. Match the wavelengths in Column I with their colours in Column II.