Punjab 12th Class Physics Chapter 9 Atomic Spectra Mcqs Test Online
Questions 10
Total Marks 20
Time 10 Mins
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Punjab 12th Class Physics Chapter 9 Atomic Spectra Mcqs Test Online

Start your preparation for Punjab 12th Class Physics Chapter 9 Atomic Spectra Mcqs Test Online. This online test contains 10 MCQs and you have 10 Minutes to complete it. The total marks for this test are 20. This test is valid for students of All Punjab Boards (Lahore, Gujranwala, Multan, etc.) following the PCTB Syllabus. Read the questions carefully and select the correct option below to see your result.

Punjab 12th Class Physics Chapter 9 Atomic Spectra Mcqs Test Online

 

Question 1 of 10

Physics

1. According to Bohr’s theory the radius of quantized orbit is given by:
1.
2.
3.
4.

Question 1 of 10

Question 2 of 10

2. In the Bohr’s model of the hydrogen atom, the lowest orbit corresponds to:
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2.
3.
4.

Question 2 of 10

Question 3 of 10

3. When an electron in an atom goes from a lower to higher orbit its:

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2.
3.
4.

Question 3 of 10

Question 4 of 10

4. Target material used in X-rays tube must have following properties:
1.
2.
3.
4.

Question 4 of 10

Question 5 of 10

5. The Balmer series is obtained when all the transition of electron terminate on:
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2.
3.
4.

Question 5 of 10

Question 6 of 10

6. In accordance with Bohr’s theory the K.E, of the electron is equal to:

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2.
3.
4.

Question 6 of 10

Question 7 of 10

7. For an atom of hydrogen atom the radius of the first orbit is given by:
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2.
3.
4.

Question 7 of 10

Question 8 of 10

8. Laser is device which can produce:
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2.
3.
4.

Question 8 of 10

Question 9 of 10

9. Frequency of X-rays depends upon:
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3.
4.

Question 9 of 10

Question 10 of 10

10. If 13.6eV energy is required to ionize the hydrogen atom, then the required energy to remove an electron from n = 2 is:
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4.

Question 10 of 10


 

Guide for Punjab Board Students

Students of BISE Lahore, Gujranwala, Multan, and other Punjab boards must follow the SLO based pattern.

Top Scoring Tips for Punjab:

  • Textbook Reading: The paper is 100% derived from PCTB books. Do not rely only on keybooks.
  • Objective Paper (20%): Practice these online MCQs repeatedly as they are taken from 5-Year Past Papers.
  • Bubble Sheet: Ensure you know how to fill the OMR sheet correctly.

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