MDCAT Physics Chapter 12 Test

The students can get the MCQs of Chapter 12 of Physics from this page. The MCQs of all the other chapters are also available that help the students during their preparation phase of MDCAT. The candidates can access the MCQs easily in a hassle-free manner so that they can solve them to strengthen their preparation.

By practicing the online MCQs, the students have better insight into all the topics included in the chapter. After preparing, the students should spend the maximum time solving the MCQs. It will help the students to ace the exam with a better score. The primary purpose of providing online MCQs is to facilitate the students so they can prepare for the upcoming exam in a better way. Moreover, it is also mandatory for the students to score the maximum marks to get admission to medical and dental colleges. For further updates, keep visiting this platform. This online test contains MCQs about following topics:.

a) Describe energy of photon E =hf . b) Understand the concept of photoelectric effect, threshold frequency and work function energy. c) Explain why the maximum photoelectric energy is independent of intensity where as photoelectric current is proportional to intensity. d) Describe Einstein’s Photoelectric equation 2 max 2 1 hf = mv . e) Define and explain de Broglie wavelength and use p h . f) Understand discrete energy levels of hydrogen atom and spectral lines g) Use the relation = hf = (E1 -E2 . h) Describe the production of X-rays and main features of X-rays tube. i) Identify use of X-rays. j) Explain Band Theory and its terms valence band, conduction band and forbidden band. Here you can prepare MDCAT Physics Ch 12 Electromagnetic Induction Test. Click the button for 100% free full practice test.

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MDCAT Physics Chapter 12 MCQ Test With Answer for Physics chapter 12 (Electromagnetic Induction)

MDCAT Physics Chapter 12 Test

MDCAT Physics Chapter 12 Atomic spectra Induction Online Test

MDCAT Physics Chapter 12 Atomic spectra Induction Online Test

To find longest wavelength radiation in Ballmer series, the value of n used is:

As the intensity of incident light increases:

Which one is the correct express of de-Broglie equation for the length of atoms of mass m at temp? T(k=Boltzmann’s constant):

When ultraviolet rays are incident in metal plate, then photoelectric effect does not occur. It occurs by the incidence of:

An electron and a proton are accelerated through the same potential. If their masses are me and mp respectively, then the ratio of their de-Broglie wavelength is:

The hydrogen atoms are excited to the stationary state designated by the principal quantum number n=4, the number of maximum spectral lines are observe:

Monochromatic light of wavelength 300 nm is incident normally on a surface of area 4 cm2.If the intensity of light is 150 mW/m2; the rate at which photon strike the surface:

The Balmer series is found in the spectrum of:

The minimum energy required to remove an electron is called:

Ultraviolet radiation of 6.2 eV falls on an aluminium surface having work function ∅ = 𝟒. 𝟐 𝒆𝑽.The kinetic energy of the fastest electron emitted is:

Light of frequency 2 times the threshold frequency is incident on the metalsurface. Ifthe frequency is by quartered and intensity is doubled, the photoelectric becomes

Which of the following is not true?

A proton and an 𝑎 − 𝒑𝒂𝒓𝒕𝒊𝒄𝒍𝒆 are accelerated through same voltage, the ratio of their de- Broglie wavelength will be:

Continuous spectrum of X-rays id due to an effect known as

How many photons per second does a one-watt bulb emit if its efficiency is 10% and the wavelength of light is 500 nm:

Intensity of light from a point source at the edge of unit sphere will be:

Threshold wavelength for metal having work function 𝝋 is 𝝀. What is the threshold wavelength for metal having work function 2 𝒊𝒔:

Light of frequency 4f0 is incident on the metal of the threshold frequency f0. The maximum kinetic energy of the emitted photoelectrons is

Work function of all metals varies from 2 eV to 4eV. It is 4.2 eV for Aluminum and2eV for Sodium. If these two metals are illuminated by same light, the thresholdfrequency ofAluminum is

The potential difference applied to an X-rays tube is increased. As a result, in the emitted radiation

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Test Questions

Monochromatic light of wavelength 300 nm is incident normally on a surface of area 4 cm2.
If the intensity of light is 150 mW/m2; the rate at which photon strike the surface:

Ultraviolet radiation of 6.2 eV falls on an aluminium surface having work function ∅ = 𝟒. 𝟐 𝒆𝑽.
The kinetic energy of the fastest electron emitted is: