NEET UG BIOLOGY Multiple Choice Questions (MCQs)

NEET UG BIOLOGY - Experimental Skills (Questions 286 to 300)

286. What is the use of Vernier calipers in experiments?
     a) To measure the temperature of a substance.
     b) To measure the internal and external diameter and depth of a vessel.
     c) To measure the time period of a simple pendulum.
     d) To measure the resistance of a given wire.
     Answer: b) To measure the internal and external diameter and depth of a vessel.
287. The screw gauge is used to determine which of the following?
     a) The mass of an object.
     b) The specific heat capacity of a solid.
     c) The thickness or diameter of a thin sheet or wire.
     d) The refractive index of a glass slab.
     Answer: c) The thickness or diameter of a thin sheet or wire.
288. In the experiment of a simple pendulum, which of the following graphs is plotted to study the dissipation of energy?
     a) Graph between displacement and time.
     b) Graph between amplitude and time.
     c) Graph between the square of amplitude and time.
     d) Graph between period and length.
     Answer: c) Graph between the square of amplitude and time.
289. The mass of a given object can be determined using which of the following tools?
     a) Vernier calipers.
     b) Screw gauge.
     c) Metre scale by the principle of moments.
     d) Travelling microscope.
     Answer: c) Metre scale by the principle of moments.
290. Young's modulus of elasticity of the material of a metallic wire can be determined by which experiment?
     a) Using a simple pendulum.
     b) Measuring the velocity of sound in air.
     c) By stretching the wire and measuring the elongation.
     d) By measuring the refractive index of a glass slab.
     Answer: c) By stretching the wire and measuring the elongation.
291. Surface tension of water can be measured using which of the following methods?
     a) By the method of mixtures.
     b) By capillary rise and the effect of detergents.
     c) By using the travelling microscope.
     d) By using a screw gauge.
     Answer: b) By capillary rise and the effect of detergents.
292. The coefficient of viscosity of a given liquid is determined by measuring which of the following?
     a) The terminal velocity of a spherical body in the liquid.
     b) The refractive index of the liquid.
     c) The specific heat capacity of the liquid.
     d) The surface tension of the liquid.
     Answer: a) The terminal velocity of a spherical body in the liquid.
293. The speed of sound in air at room temperature can be measured using which of the following apparatus?
     a) Metre scale.
     b) Resonance tube.
     c) Vernier calipers.
     d) Screw gauge.
     Answer: b) Resonance tube.
294. The specific heat capacity of a given solid can be measured by using which method?
     a) By measuring the terminal velocity of a sphere.
     b) By the method of mixtures.
     c) By using a resonance tube.
     d) By measuring the elongation of a wire.
     Answer: b) By the method of mixtures.
295. The resistivity of the material of a given wire can be determined using which apparatus?
     a) Metre bridge.
     b) Vernier calipers.
     c) Screw gauge.
     d) Resonance tube.
     Answer: a) Metre bridge.
296. The resistance of a given wire can be measured using which law?
     a) Ohm’s law.
     b) Hooke’s law.
     c) Newton’s law.
     d) Stefan’s law.
     Answer: a) Ohm’s law.
297. The figure of merit of a galvanometer can be found by which method?
     a) Half deflection method.
     b) By using a resonance tube.
     c) By the principle of moments.
     d) By measuring the terminal velocity of a spherical body.
     Answer: a) Half deflection method.
298. Which method is used to determine the focal length of a concave mirror?
     a) Parallax method.
     b) Using the resonance tube.
     c) By plotting a graph between amplitude and time.
     d) By measuring the resistance of the mirror.
     Answer: a) Parallax method.
299. The plot of the angle of deviation versus the angle of incidence is used for determining the properties of which optical device?
     a) Convex lens.
     b) Concave mirror.
     c) Triangular prism.
     d) Convex mirror.
     Answer: c) Triangular prism.
300. The refractive index of a glass slab can be determined using which of the following apparatus?
     a) Vernier calipers.
     b) Travelling microscope.
     c) Screw gauge.
     d) Metre bridge.
     Answer: b) Travelling microscope.

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