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ICSE Class X Mid-term 2023 : Physics (Metas School of Seventh - Day Adventists, Surat)

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Nikita Jariwala
Metas School of Seventh - Day Adventists, Surat

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ITerm Exam: 2022-23 - X Physics - Page 1 of 4 METAS ADVENTIST SCHOOL | TERM EXAM: 2022 - 23 Class: X Name: Subject Physics Date: 26-07-2022 -Roll No. Marks: 80 Time: 2 Hrs SECTION-A[40M (Attempt all the questions from this Section) [20] Q. 1. Choose the best 1. What is the position of centre of gravity of a solid cone of height h from its vertex? 3h C a. 3 b. d. 2h 4 3 Z. A satellite revolves around a planet in a circular orbit What is the work done on the satellite? a. mgh b. Maximum and positive - C. Zero d. Negative Used? 3. There is no gain in mechanical advantage of a single fxed pulley. Why is it then a. to change direction of effort b. to multiply force C. to multiply speed d. to change the point of application of force 4. Which of the following is an essential condition for total internal reflection to occur? a. Light must travel from denser to rarer medium b. Angle of incldence must be equal to critical angle C. Angle of incidence must be equal to angle of refracion d. Light must travel from rarer to denser medium 5. Which of the following is not a type of a convex lens? a. Double convex lens b. Concavo convex lens C. Plano convex lens d. Convexo concave lens 6. Which of the following is an example where cantre of gravity does not lie within the material of object? a. Circular disc C. Circular lamina - b. Ring d. Solid sphere 7. State the energy changes in microwave oven. a. Heat energy to electrical energy b. Heat energy to mechanical energy c. Mechanlcal energy to heat energy d. Electrical energy to heat energy 8. A machine: a. Cannot have a mechanical advantage less than unity b. Always has the efficiency 100% c. Can have a mechanical advantage greater than its velocity ratio d. Can be used as a speed multipler 9. On which part of a right angled isosceles prism ABC shown in diagram should light rays be incident so as to invert the rays? a. AB b. AC C. BC d. Only AD

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