Class 7 Science MCQs (Grade 7) From Textbook

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Class 7 Science MCQs – Practice Test 25 (Chapter 4)

Dispersion of Light MCQs with Answers PDF Download – Test 25

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The Dispersion of light Multiple Choice Questions (MCQs) with Answers PDF (Dispersion of Light MCQs PDF e-Book) download Ch. 4-25 to study Class 7 Science Course. Learn Dispersion of Light Quiz Questions and Answers to learn e-learning courses. The Dispersion of Light MCQs App to Download Free Class 7 Science MCQs App for total internal reflection, refraction of light, light and straight lines, refractive index test prep for online elementary school courses.

The MCQ: The critical angle for "Perspex" is; "Dispersion of Light MCQs" App Download [Free] with answers: 42 degree, 40 degree, 44 degree, and 46 degree to learn e-learning courses. Solve Total Internal Reflection MCQ Questions, download Google e-Book (Free Chapter) for online teaching certification programs.

Dispersion of Light MCQs – Practice Test 25 PDF Download

MCQ: 121

The critical angle for "Perspex" is

  1. 40 degree
  2. 42 degree
  3. 44 degree
  4. 46 degree
MCQ: 122

When light enters a dense medium, it

  1. speeds up
  2. slows down
  3. increases its frequency
  4. increases its wavelength
MCQ: 123

The critical angle for ice is

  1. 47 Degree
  2. 49 Degree
  3. 50 Degree
  4. 45 Degree
MCQ: 124

The speed of light in 'vacuum' is

  1. 3,000 km/s
  2. 30,000 km/s
  3. 300,000 km/s
  4. 3,000,000 km/s
MCQ: 125

'Refractive index' of quartz is

  1. 1.54
  2. 1.34
  3. 2.04
  4. 1.72

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