Tamil Nadu SSLC (Class 10) Optics — practice questions
26 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice Tamil Nadu SSLC (Class 10) Optics in the app →A glass slab has a refractive index of 1.5. If the speed of light in vacuum is $3 \times 10^8\ \text{m s}^{-1}Four transparent media have refractive indices 1.31, 1.43, 1.33 and 2.40. In which medium does light travel atLight travels from vacuum ($\mu_1 = 1.0$) into glass of refractive index 1.5, striking the surface at an angleWhen a ray of light passes from a denser medium into a rarer medium at the interface, how does the refracted rWhen white light is refracted through a glass prism and splits into its component colours (VIBGYOR), which colInside a glass prism, let $V_B$, $V_G$ and $V_R$ be the speeds of blue, green and red light. Which relation isAccording to Rayleigh's law, the amount of scattering of light is inversely proportional to which power of itsThe daytime sky appears blue mainly because of which optical phenomenon involving sunlight and atmospheric gasClouds appear white because of which type of scattering, where the scatterer size is similar to or larger thanA beam of monochromatic light passes through a liquid and the scattered light contains additional wavelengths An object is placed at the centre of curvature (at 2F) of a convex lens. What is the nature and size of the imA small bulb is placed exactly at the principal focus of a convex lens. What kind of beam emerges from the othFor a convex lens to form a real, inverted image that is larger than the object, where must the object be placA concave lens always forms what kind of image for a real object, regardless of the object's position?An object is placed 20 cm from a convex lens of focal length 10 cm. Using the lens formula, what is the image A beam of light passing through a diverging lens of focal length 0.3 m appears to focus 0.2 m behind the lens A convex lens produces an image of height 6 cm from an object of height 2 cm. What is the magnification producThe power of a lens is $-4\ \text{D}$. What is its focal length?Two thin lenses of powers $+5\ \text{D}$ and $-2\ \text{D}$ are placed in contact. What is the focal length ofIn a myopic (short-sighted) eye, where is the image of a distant object formed relative to the retina?The eye defect presbyopia, in which a person loses the power of accommodation for both near and distant visionA myopic person can clearly see objects only up to 4 m and wants to see objects up to 20 m. Using $f = \dfrac{For a hypermetropic person, the near point has shifted to 1.5 m. Using $f = \dfrac{dD}{d-D}$ with $D = 0.25$ mThe ability of the eye lens to focus on both nearby and distant objects by changing its focal length is known For correcting myopia, a concave lens is used. According to the convention for lens power, the power of such aIn a compound microscope, the lens placed near the object has which property compared with the eye-piece lens?