Chemistry · JEE

Nature of electromagnetic radiation, photoelectric effect, spectrum of the hydrogen atom Revision for JEE

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Revise Nature of electromagnetic radiation, photoelectric effect, spectrum of the hydrogen atom by covering every subtopic once, drilling formulas, then solving 16+ timed MCQs with full solutions.

Use this Nature of electromagnetic radiation, photoelectric effect, spectrum of the hydrogen atom revision checklist before mocks and the final exam. Reinforce concepts with 16+ syllabus-aligned MCQs on Goodmarks.

Revision checklist

1.Core idea: Nature of electromagnetic radiation, photoelectric effect, spectrum of the hydrogen atom
2.Relates to other subtopics in Atomic Structure
3.Bohr model limitations, quantum numbers
4.Orbital shapes s, p, d
5.Master Nature of electromagnetic radiation, photoelectric effect, spectrum of the hydrogen atom definitions and standard results
6.Solve 20 timed MCQs for Nature of electromagnetic radiation, photoelectric effect, spectrum of the hydrogen atom

Syllabus context

Part of Atomic Structure in JEE Main Chemistry.

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Q1ChemistryUnit 2: Atomic Structure

Which of the following statements is incorrect?

Q2ChemistryUnit 2: Atomic Structure

Radiation of wavelength 242 nm is sufficient to ionize the sodium atom. Calculate the ionization energy in

\boldsymbol{k J} \boldsymbol{m o l}^{-1} \cdot\left(\boldsymbol{n}=\mathbf{6 . 6 2 5} \times \mathbf{1 0}^{-\mathbf{3 4}} \boldsymbol{J}-\boldsymbol{s}\right)

Q3ChemistryUnit 2: Atomic Structure

Which of the following statements is not true about canal rays?

Q4ChemistryUnit 2: Atomic Structure

A sample of water is vaporized and tested in a mass spectrometer. There are 3 isotopes of hydrogen,

1 H,^{2} H

and 3. H. There are 2 isotopes of oxygen,

^{15} \boldsymbol{O}

and

^{16}

O. How many peaks would be expected to be found on the mass spectrum?

Q5ChemistryUnit 2: Atomic Structure

In a measurement of quantum efficiency of photosynthesis in green plants, it was found that 10 quanta of red light of wavelength

6850 A

were needed to release one molecule of

\boldsymbol{O}_{2}

The average energy storage in this process is 112 kcal per mol of

O_{2}

evolved. What is the energy conversion efficiency in this experiment? Given: 1 cal

=4.18 J ; N_{A}=6 \times

\mathbf{1 0}^{\mathbf{2 3}} ; \boldsymbol{h}=\mathbf{6 . 6 3} \times \mathbf{1 0}^{-\mathbf{3 4}} \boldsymbol{J} . \boldsymbol{s}

Q6ChemistryUnit 2: Atomic Structure

X

-rays are produced when a stream of electrons in an

X

-ray tube:

Q7ChemistryUnit 2: Atomic Structure

Electromagnetic radiation with maximum wavelength is:

Q8ChemistryUnit 2: Atomic Structure

Which among the following is correct about

\gamma-

rays ?

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