📘 Study MCQs Q1. What is the name of the transparent front part of the eye that protects it and allows light to enter? A. Retina B. Iris C. Cornea D. Pupil AnswerC. CorneaDetails The cornea is the transparent, dome-shaped outermost layer at the front of the eye. It serves as a protective barrier against […]
📘 Study MCQs Q1. What is the bending of light as it passes through the Earth’s atmosphere called? A. Atmospheric Reflection B. Atmospheric Refraction C. Atmospheric Dispersion D. Atmospheric Scattering AnswerB. Atmospheric RefractionDetails Atmospheric refraction is the bending of light as it passes through the Earth’s atmosphere due to variations in air density, temperature, and
📘 Study MCQs Q1. Why is a concave mirror used by dentists to examine teeth? A. It makes teeth look smaller. B. It provides a wider view. C. It produces a magnified image. D. It lights up the mouth. AnswerC. It produces a magnified image.Details Dentists use concave mirrors because when a tooth is placed
📘 Study MCQs Q1. Which chemical is used to test for the presence of starch in a food sample? A. Benedict’s solution B. Iodine solution C. Copper sulphate solution D. Caustic soda AnswerB. Iodine solutionDetails Iodine solution is a specific indicator for starch; it reacts with the helical structure of amylose to produce a characteristic
📘 Study MCQs Q1. What is the main function of carbohydrates in our body? A. To build muscles B. To provide energy C. To fight diseases D. To carry oxygen AnswerB. To provide energyDetails Carbohydrates are the body’s primary energy source; they are broken down into glucose, which fuels cellular activities, brain function, and physical
📘 Study MCQs Q1. Why is a concave mirror used by dentists to examine teeth? A. It makes teeth look smaller. B. It provides a wider view. C. It produces a magnified image. D. It lights up the mouth. AnswerC. It produces a magnified image.Details Dentists use concave mirrors because when a tooth is placed
📘 Study MCQs Q1. In the sign convention for spherical mirrors, distances are measured from the __________. A. Centre of curvature B. Focus C. Pole D. Object AnswerC. PoleDetails In the Cartesian sign convention commonly used for spherical mirrors, all distances are measured from the pole (P), which is the geometric center of the mirror’s
📘 Study MCQs Q1. Which type of mirror has a reflecting surface that curves inwards? A. Plane mirror B. Concave mirror C. Convex mirror D. Spherical mirror AnswerB. Concave mirrorDetails A concave mirror has a reflecting surface that curves inward, resembling the inner surface of a sphere. This inward curvature gives it the property of
📘 Study MCQs Q1. Why does a wet kitchen sponge start to smell bad after a few days? A. Because it absorbs food smells B. Because bacteria and mould grow in the damp, organic material C. Because the plastic is breaking down D. Because it dries out Answer B. Because bacteria and mould grow in
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📘 Study MCQs Q1. Which of these is a disease-causing microorganism in plants? A. Rhizobium B. Lactobacillus C. Virus causing yellow vein mosaic of bhindi D. Yeast Answer C. Virus causing yellow vein mosaic of bhindi Details The virus causing yellow vein mosaic is a pathogen that specifically infects plants like bhindi (okra), while rhizobium,
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