CBSE Class 11 Physics and Measurement — practice questions
48 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 11 Physics and Measurement in the app →Per NCERT §1.2 Table 1.1, the SI system has how many BASE quantities and units?Per NCERT §1.2, the SI unit of LUMINOUS INTENSITY is which?Per NCERT §1.2, the SI unit of AMOUNT OF SUBSTANCE is the mole, and one mole contains exactly how many entitiePer NCERT §1.2 (revised SI 2018), the second is defined via the caesium-133 hyperfine transition frequency Δν_Per NCERT §1.2 (revised SI 2018), the metre is defined so that the speed of light in vacuum equals which valuePer NCERT §1.2 (revised SI), the kilogram is now defined via which fundamental constant?Per NCERT §1.2 (revised SI), the kelvin is defined by fixing which constant?Per NCERT §1.2, the unit of PLANE ANGLE in SI is which?Per NCERT §1.2, the unit of SOLID ANGLE in SI is which?Per NCERT §1.2, the SI unit of ELECTRIC CURRENT is the ampere, defined via the elementary charge fixed at whicPer NCERT Table 1.2, 1 LITRE equals which SI volume?Per NCERT Table 1.2, 1 STANDARD ATMOSPHERIC PRESSURE (atm) equals approximately which value?Per NCERT §1.3 rule, ALL non-zero digits in a measurement are which?Per NCERT §1.3, the number of significant figures in 2.308 cm is which?Per NCERT §1.3 rule, in a number less than 1, the zeros LEFT of the first non-zero digit are which?Per NCERT §1.3, the number of significant figures in 0.007 m² is which?Per NCERT §1.3, in a number WITH a decimal point, TRAILING zeros are which?Per NCERT §1.3, the number of significant figures in 6.320 J (NCERT Ex 1.10d) is which?Per NCERT §1.3, the number 4 700 m written WITHOUT a decimal has how many significant figures?Per NCERT §1.3 (scientific notation), in the form a × 10ᵇ all zeros appearing in the base number a are which?Per NCERT §1.3, the diameter of Earth ≈ 1.28 × 10⁷ m has order of magnitude equal to which value?Per NCERT §1.3, the diameter of a hydrogen atom (≈ 1.06 × 10⁻¹⁰ m) has order of magnitude equal to which valuePer NCERT §1.3 rule, exact integers (like 2 in s = 2πr or n in T = t/n) have how many significant figures?Per NCERT §1.3, the digit 0 conventionally placed to the LEFT of the decimal in numbers < 1 (e.g. 0.1250) is wPer NCERT §1.3.1 rule 1, in MULTIPLICATION or DIVISION the final result should retain how many significant figPer NCERT §1.3.1 rule 2, in ADDITION or SUBTRACTION the result retains how many DECIMAL PLACES?Per NCERT Ex 1.2, 5.74 g of substance in 1.2 cm³ gives a density of which value to correct significant figuresPer NCERT §1.3.1, the sum 436.32 g + 227.2 g + 0.301 g = 663.821 g should be reported as which value?Per NCERT §1.3.2, the number 2.746 rounded to THREE significant figures is which?Per NCERT §1.3.2 (banker's rounding), the number 2.745 rounded to THREE significant figures is which?Per NCERT §1.3.2, the number 2.735 rounded to THREE significant figures becomes which?Per NCERT Ex 1.1, the surface area of a cube of side 7.203 m to appropriate significant figures is which?Per NCERT §1.3.3 Ex 1, the area of a rectangle 16.2 cm × 10.1 cm with each ±0.1 cm uncertainty is approximatelPer NCERT §1.3.3, the relative error in a measurement of 1.02 g with ±0.01 g uncertainty is approximately whicPer NCERT §1.3.3, in 12.9 g − 7.06 g (each to 3 significant figures), the result must be reported as which?Per NCERT §1.3.2 (general practice), in multi-step calculations one should retain how many EXTRA digits in intPer NCERT §1.4, the dimensional formula of FORCE is which?Per NCERT §1.5, the dimensional formula of ENERGY (joule) is which?Per NCERT §1.5, the dimensional formula of MASS DENSITY is which?Per NCERT §1.5, the dimensional formula of VELOCITY is which?Per NCERT §1.6.1 (principle of homogeneity), two physical quantities can be added or subtracted only if which Per NCERT §1.6.1, the arguments of TRIGONOMETRIC, LOGARITHMIC, and EXPONENTIAL functions must be which kind ofPer NCERT Ex 1.4, which formula for kinetic energy is dimensionally INCORRECT?Per NCERT §1.6.1 (key warning), a DIMENSIONALLY CORRECT equation is necessarily which?Per NCERT Ex 1.5, the period of a simple pendulum T derived from dimensional analysis (l, g, m) gives which foPer NCERT Ex 1.5, dimensional analysis CANNOT determine which feature of the simple pendulum formula T = 2π√(lPer NCERT §1.4, the dimensions of PRESSURE are which?Per NCERT §1.6.1, ANGLE has which dimensions, since it is the ratio of two lengths (arc/radius)?