CBSE Physics Ray Optics And Optical Instruments Test 1 Online Mcqs Queston Answer
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CBSE Physics Ray Optics and Optical Instruments Test 1 Online

Test Name Ray Optics and Optical Instruments Test
Subject CBSE Physics
Test Type MCQs
Total Question 25
Total Marks 50
Total Time 20 Minutes
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Central Board of Secondary Education, CBSE is main Board of Education in India to control all educational institutes Classes wise,  Physics all grades chapter wise test coverage guided material arrange in these test. Today our topic is Ray Optics and Optical Instruments test to prepare through recent syllabus. Electromagnetic Field that propagates through space carries a radiant energy. This energy can be divided into 7 radiation namely radio Waves, Micro Waves, Infrared, Visible Lights, Ultraviolet, X-Ray and Gamma Rays based on their wavelength. Take online quiz test for prepare more your knowledge about these fields.

CBSE Physics Ray Optics and Optical Instruments Test 1 Online


1. mark reviewThe hypermetropia is a ?

Question 1 of 15

2. mark reviewLight travels through a glass plate of thickness t and refractive index μ. If c is the speed of light in vacuum, the time taken by light to travel this thickness of glass is ?

Question 2 of 15

3. mark reviewRay optics is valid, when characteristic dimensions are ?

Question 3 of 15

4. mark reviewFocal length of a convex lens will be maximum for ?

Question 4 of 15

5. mark reviewWhich of the following phenomenon is not common to sound and light waves ?

Question 5 of 15

6. mark reviewInterference is possible in ?

Question 6 of 15

7. mark reviewOne face of a rectangular glass plate 6 cm thick is silvered. An object held 8 cm in front of the first face, forms an image 12 cm behind the silvered face. The refractive index of the glass is ?

Question 7 of 15

8. mark reviewAn astronomical telescope of ten-fold angular magnification has a length of 44 cm. The focal length of the objective is ?

Question 8 of 15

9. mark reviewThe two mirrors are kept inclined at 60° to each other and a body is placed at the middle, then total number of images formed is ?

Question 9 of 15

10. mark reviewPick out the longest wavelength from the following types of radiations ?

Question 10 of 15

11. mark reviewThere is a prism with refractive index equal to √2and the refracting angle equal to 30°. One of the refracting surface of the prism is polished. A beam of monochromatic will retrace its path if its angle of incidence over the refracting surface of the prism is ?

Question 11 of 15

12. mark reviewA point source of light is placed 4 m below the surface of water of refractive index 5/3. The minimum diameter of a disc, which should be placed over the source, on the surface of water to cut off all light coming out of water is ?

Question 12 of 15

13. mark reviewIf fv and fR are the focal lengths of a convex lens for violet and red light respectively and Fv and FR are the focal lengths of concave lens for violet and red light respectively, then we have ?

Question 13 of 15

14. mark reviewA ray is incident at an angle of incidence i on one surface of prism of small angle A and emerge normally from opposite surface. If the refractive index of the material of prism is μ, the angle of incidence i is nearly equal to ?

Question 14 of 15

15. mark reviewA beam of monochromatic light is refracted from vacuum into a medium of refractive index 1.5. The wavelength of refracted light will be ?

Question 15 of 15


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