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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

51.	Mass can be measured using _____(a) Beam balance(b) Clock(c) Our hands(d) WaterThe question was asked during an interview for a job.This interesting question is from Measurement of Mass topic in chapter Units and Measurements of Physics – Class 11
Answer» Right OPTION is (a) Beam balance Explanation: MASS is usually measured using a beam balance. In a bean balance, we put a WEIGH an UNKNOWN mass against a known mass. This is the most COMMON method of mass measurement.

52.	Which of the following are NOT units of time?(a) Second(b) Light year(c) Tropical year(d) MinuteThe question was posed to me in a job interview.Question is from Measurement of Time topic in chapter Units and Measurements of Physics – Class 11
Answer» Right CHOICE is (B) Light year Easiest EXPLANATION: Light year is a unit of measurement of distance. Tropical year is the amount of time sun TAKES to return to the same POSITION in the season cycle.

53.	Mass is a _____(a) Scalar quantity(b) Vector quantity(c) Free quantity(d) Dependent quantityThe question was asked in exam.My question is from Measurement of Mass in chapter Units and Measurements of Physics – Class 11
Answer» The CORRECT option is (a) Scalar quantity To explain I would say: MASS is a scalar quantity. This means that it does not have direction. Scalar QUANTITIES are also called as directionless quantities.

54.	Mass can be explained as _____(a) Amount of space(b) Amount of time(c) Amount of weight(d) Amount of matterThe question was asked in examination.My question is based upon Measurement of Mass topic in division Units and Measurements of Physics – Class 11
Answer» RIGHT option is (d) Amount of matter To elaborate: Mass is the amount of matter in a body. Amount of space covered by a body is called VOLUME. Amount of time and WEIGHT do not have any PHYSICAL SIGNIFICANCE.

55.	Distance between two cities, in standard units will be measured in ______(a) Meter(b) Kilometer(c) Mile(d) CentimeterThe question was asked by my school teacher while I was bunking the class.Query is from Measurement of Length topic in section Units and Measurements of Physics – Class 11
Answer» Right CHOICE is (a) METER For explanation I would SAY: The standard UNIT of measurement is meter; hence the answer is meter. The distance between two cities is usually measured in kilometer but the standard unit is meter.

56.	What is the unit for measuring intensity of light?(a) Candela(b) Lightyear(c) Meter(d) MolThis question was posed to me in unit test.This interesting question is from The International System of Units topic in section Units and Measurements of Physics – Class 11
Answer» Correct ANSWER is (a) CANDELA For explanation I would say: The unit for measuring luminous intensity is Candela (CD). Lightyear and Meter are units of DISTANCE. Mol is unit of amount of a SUBSTANCE.

57.	What does a Voltmeter measure?(a) Voltage(b) Current(c) Length(d) SpeedThe question was posed to me during an online exam.Asked question is from The International System of Units in portion Units and Measurements of Physics – Class 11
Answer» CORRECT answer is (a) VOLTAGE The explanation is: A voltmeter is USED for MEASURING voltage. An ammeter is used for measuring current. A combination of both can be used to determine the resistance in a simple circuit.

58.	What are the dimensions of coefficient of friction?(a) MLT^-2(b) LT^-1(c) L(d) It is dimensionlessI got this question in exam.Question is from Dimensional Formulae and Equations topic in chapter Units and Measurements of Physics – Class 11
Answer» The correct answer is (d) It is dimensionless Easiest explanation: COEFFICIENT of friction is the RATIO of FRICTIONAL force to Normal Reaction force; hence it is dimensionless. The formula for calculating this is, f = µN.

59.	Which of the following is the standard unit of measurement of mass?(a) Gram(b) Kilogram(c) Pound(d) DozenThe question was posed to me in exam.I'm obligated to ask this question of Measurement of Mass topic in section Units and Measurements of Physics – Class 11
Answer» Correct choice is (b) Kilogram Easy EXPLANATION: Kilogram is the STANDARD unit of measurement of MASS. Pound and gram are ALSO units of mass nut are not standard. Dozen is a unit of measurement of QUANTITY.

60.	The length and breadth of a rectangle are 4.5 mm and 5.9 mm. Keeping the number of significant figures in mind, its area in mm^2 is ____(a) 22.55(b) 26.55(c) 26.6(d) 22This question was addressed to me during an interview.My doubt stems from Significant Figures in portion Units and Measurements of Physics – Class 11
Answer» RIGHT choice is (b) 26.55 Explanation: Area of RECTANGLE is LENGTH MULTIPLIED by breadth. The area of this rectangle is 4.5×5.9 mm^2 = 26.55 mm^2.