WebEven if the lens' curvature is not circular, it can focus the light rays to a point. It's just an assumption, for the sake of simplicity. We are just learning the basics of ray optics, so we are simplifying things to our convenience. Lenses don't always need to be symmetrical. Eye lens, as you said, isn't symmetrical. Web(b) Both Assertion and Reason are true but Reason is not the correct explanation of Assertion. (c) Assertion is true but Reason is false. (d) Assertion is false but Reason is …

Prism theory and Dispersion of light MCQs for NEET 2024 - BYJU

WebRefraction makes celestial objects appear higher in the sky. Magic Atmosphere. One of mother nature's favorite magic tricks, refraction is the bending of light as it moves from one substance to another.. It is responsible for a variety of optical phenomena including rainbows, mirages, halos, and sundogs.It is also the reason why stars twinkle at night, … WebIn physics, refraction is the redirection of a wave as it passes from one medium to another. The redirection can be caused by the wave's change in speed or by a change in the … thin propane fireplace

Human Eye and Colourful World MCQ Questions for Class 10

WebReason : Both refracting sides scatter the light. (a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion. (b) Both Assertion and Reason are true but Reason is not the correct explanation of Assertion. In this … WebThe sides of a prism are not parallel and light changes direction when it passes through it. A ~1% variation in the index of refraction over the entire visible range of electromagnetic radiation still results in a significant … WebDispersion is defined as the separation of white light into different colours when the light is passed through the prism. The amount of scattering depends on the wavelength of light. Q1: The critical angle between an equilateral prism and air is 45. If the incident ray is perpendicular to the refracting surface, then. thin provision vs thick provision