10th Class Physics Chapter Wise Online MCQ Test With Answers PDF English Medium

Physics 10th Class English Medium Online Test

Sr. #	Questions	Answers Choice
1	Unlike charges always:	Repel each other Attract each other Sometimes repel and attract each other Both A and B
2	Optical fibers work on the principle of:	Refraction Reflection Total internal reflection Diffraction
3	When the object is placed beyond 2F of a convex lens, the image formed will be:	Real, inverted and smaller than the object Real, inverted and of the same size as the object Real, inverted and larger in size than the object Virtual, erect and larger in size than the object
4	If focal length of a lens is 1m, then its power will be:	1 D 0.5 D 1.5 D 1 D
5	The S.I unit of power of a lens is:	Dioptre Volt Ampere Watt
6	After refraction from a convex lens, rays of light parallel to the principal axis converge at a point, this point of convex lens is called:	Principal focus Pole Focal length Optical center
7	When light passes through a prism it deviates from its original path due to:	Reflection Diffraction Interference Refraction
8	Mathematical relationship between critical angle "C" and refractive index "n" is:	N = C N = 1 / sin c N = 1 / cos c N = 1 / sin2 c
9	Snell's law is stated as:	Sin i / sin r = n1/n2 sin i / sin r = n2/n1 sin r / sin i = n2/n1 sin r / sin i = 2n2/n1
10	An object is placed 6 cm away in front of a concave mirror that has 10 cm focal length. Determine the location of the image:	-5 cm -10 cm -15 cm -20 cm
11	The focal length is related to radius of curvature by the formula:	f = 2R f = 4R f = R/2 R = f/2
12	The principal focus of a concave mirror is:	Virtual Real Imaginary Dual aspect

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