Dual Nature of Matter and Radiation questions
494 published questions with worked solutions.
- If the de Broglie wavelength of an electron is equal to 10^ -3 times the wavelength of a photon of frequency 6 10^ 14 Hz, then...
- A metal plate of area 1 10^ -4 m^2 is illuminated by a radiation of intensity 16 mW/m^2. The work function of the metal is 5 eV....
- In an electron microscope, the resolution that can be achieved is of the order of the wavelength of electrons used. To resolve a...
- An electron (of mass m) and a photon have the same energy E in the range of a few eV. The ratio of the de-Broglie wavelength...
- An electron of mass m and magnitude of charge |e| initially at rest gets accelerated by a constant electric field E. The rate of...
- Radiation, with wavelength 6561 Å falls on a metal surface to produce photoelectrons. The electrons are made to enter a uniform...
- A particle moving with kinetic energy E has de Broglie wavelength . If energy E is added to its energy, the wavelength become /2....
- Two sources of light emit X-rays of wavelength 1 nm and visible light of wavelength 500 nm, respectively. Both the sources emit...
- Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Number of...
- Which of the following statement is not true about stopping potential (V_0)?
- Which of the following phenomena does not explain by wave nature of light (A) reflection (B) diffraction (C) photoelectric effect...
- In photoelectric experiment energy of 2.48 eV irradiates a photo sensitive material. The stopping potential was measured to be...
- A beam of electromagnetic radiation of intensity 6.4 10^ -5 W/ cm ^2 is comprised of wavelength, = 310 nm. It falls normally on a...
- The dimension of stopping potential V_0 in photoelectric effect in units of Planck's constant 'h', speed of light 'c' and...
- When photon of energy 4.0 eV strikes the surface of a metal A, the ejected photoelectrons have maximum kinetic energy T_A eV and...
- An electron (mass m) with initial velocity v =v_0 i +v_0 j is in an electric field E =-E_0 k . If _0 is initial de-Broglie...
- A particle is moving 5 times as fast as an electron. The ratio of the de-Broglie wavelength of the particle to that of the...
- When UV light of wavelength 300 nm is incident on the metal surface having work function 2.13 eV, electron emission takes place....
- When radiation of wavelength is used to illuminate a metallic surface, the stopping potential is V. When the same surface is...
- When the wavelength of radiation of falling on a metal is changed from 500 nm to 200 nm, the maximum kinetic energy of the...
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