Chemistry · JEE

Online Practice: Nature of electromagnetic radiation, photoelectric effect, spectrum of the hydrogen atom for JEE

16+ syllabus-aligned questions available

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Goodmarks provides free online JEE practice for Nature of electromagnetic radiation, photoelectric effect, spectrum of the hydrogen atom with 16+ MCQs, instant answer checking, and full solutions. Sign up to unlock the complete question bank and topic-wise filters.

Sharpen your chemistry preparation with interactive online practice for Nature of electromagnetic radiation, photoelectric effect, spectrum of the hydrogen atom. Goodmarks offers 16+ JEE-style MCQs mapped to the official syllabus, each with detailed explanations so you learn from every attempt.

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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How do I practice Nature of electromagnetic radiation, photoelectric effect, spectrum of the hydrogen atom online for JEE?

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Goodmarks currently has 16+ JEE-aligned MCQs for Nature of electromagnetic radiation, photoelectric effect, spectrum of the hydrogen atom, with more added regularly.

Is this aligned with the JEE Main syllabus?

Yes. All Chemistry questions on Goodmarks are organised by official JEE Main units and subtopics, including Nature of electromagnetic radiation, photoelectric effect, spectrum of the hydrogen atom.

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