GENERAL SCIENCE (GENERAL STUDIES) Part-2Total Questions: 5021. In the visible spectrum the colour having the shortest wavelength is –(a) Green(b) Red(c) Violet(d) BlueCorrect Answer: (c) Violet22. On entering a glass prism, sun rays are –(a) Deviated but not dispersed(b) Deviated and dispersed(c) Dispersed but not deviated(d) Neither deviated nor dispersed.Correct Answer: (b) Deviated and dispersed23. In case of hypermetropia –(a) The image of near objects is formed in front of retina(b) The image of near objects is formed behind the retina(c) A concave lens should be used for correction(d) A convex lens cannot be used for correctionCorrect Answer: (b) The image of near objects is formed behind the retina24. Astigmatism can be corrected by –(a) Bifocal lenses(b) Cylindrical lenses(c) Concave lenses(d) Planoconvex lensesCorrect Answer: (b) Cylindrical lenses25. The phenomenon of light in which light that strikes to smooth surface and thrown back into the same medium is called(a) reflection(b) refraction(c) scattering(d) none of theseCorrect Answer: (a) reflection26. The image formed by convex lens in a simple microscope(a) virtual and erect(b) real and inverted(c) equal in size with the object(d) none of theseCorrect Answer: (a) virtual and erect27. The mirror used in motor vehicles near the driver’s seat is a(a) concave mirror(b) convex mirror(c) plane mirror(d) none of theseCorrect Answer: (b) convex mirror28. Light waves –(a) Require air or another gas to travel through(b) Require an electric field to travel through(c) Require a magnetic field to travel through(d) Can travel through perfect vacuumCorrect Answer: (b) Require an electric field to travel through29. The image formed by a convex spherical mirror is –(a) sometimes real, sometimes virtual(b) sometimes erect, sometimes inverted(c) always real and inverted(d) always virtual and upright.Correct Answer: (d) always virtual and upright.30. The term refraction of light is –(a) The bending of light rays when they enter from one medium to another medium(b) Splitting of white light into seven colours when it passes through the prism(c) Bending of light round corners of obstacles and apertures(d) Coming back of light from a bright smooth surfaceCorrect Answer: (a) The bending of light rays when they enter from one medium to another mediumSubmit Quiz« Previous12345Next »
