CBSE Class 11 (Science) Physics and Measurement — practice questions
44 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 11 (Science) Physics and Measurement in the app →As per your syllabus, Table 1.1, the SI system has how many BASE quantities and units?As per your syllabus, the SI unit of LUMINOUS INTENSITY is which?As per your syllabus, the SI unit of AMOUNT OF SUBSTANCE is the mole, and one mole contains exactly how many eAs per your syllabus, the second is defined via the caesium-133 hyperfine transition frequency Δν_Cs, fixed atAs per your syllabus, the metre is defined so that the speed of light in vacuum equals which value?As per your syllabus, the kilogram is now defined via which fundamental constant?As per your syllabus, the kelvin is defined by fixing which constant?As per your syllabus, the unit of PLANE ANGLE in SI is which?As per your syllabus, the unit of SOLID ANGLE in SI is which?As per your syllabus, the SI unit of ELECTRIC CURRENT is the ampere, defined via the elementary charge fixed aAs per your syllabus, 1 LITRE equals which SI volume?As per your syllabus, 1 STANDARD ATMOSPHERIC PRESSURE (atm) equals approximately which value?As per your syllabus, rule, ALL non-zero digits in a measurement are which?As per your syllabus, the number of significant figures in 2.308 cm is which?As per your syllabus, rule, in a number less than 1, the zeros LEFT of the first non-zero digit are which?As per your syllabus, the number of significant figures in 0.007 m² is which?As per your syllabus, in a number WITH a decimal point, TRAILING zeros are which?As per your syllabus, the number of significant figures in 6.320 J is which?As per your syllabus, the number 4 700 m written WITHOUT a decimal has how many significant figures?As per your syllabus, in the form a × 10ᵇ all zeros appearing in the base number a are which?As per your syllabus, the diameter of Earth ≈ 1.28 × 10⁷ m has order of magnitude equal to which value?As per your syllabus, the diameter of a hydrogen atom (≈ 1.06 × 10⁻¹⁰ m) has order of magnitude equal to whichAs per your syllabus, rule, exact integers (like 2 in s = 2πr or n in T = t/n) have how many significant figurAs per your syllabus, the digit 0 conventionally placed to the LEFT of the decimal in numbers < 1 (e.g. 0.1250As per your syllabus, Ex 1.2, 5.74 g of substance in 1.2 cm³ gives a density of which value to correct signifiAs per your syllabus, the sum 436.32 g + 227.2 g + 0.301 g = 663.821 g should be reported as which value?As per your syllabus, the number 2.746 rounded to THREE significant figures is which?As per your syllabus, the number 2.745 rounded to THREE significant figures is which?As per your syllabus, the number 2.735 rounded to THREE significant figures becomes which?As per your syllabus, Ex 1.1, the surface area of a cube of side 7.203 m to appropriate significant figures isAs per your syllabus, Ex 1, the area of a rectangle 16.2 cm × 10.1 cm with each ±0.1 cm uncertainty is approxiAs per your syllabus, the relative error in a measurement of 1.02 g with ±0.01 g uncertainty is approximately As per your syllabus, in 12.9 g − 7.06 g (each to 3 significant figures), the result must be reported as whichAs per your syllabus, in multi-step calculations one should retain how many EXTRA digits in intermediate stepsAs per your syllabus, the dimensional formula of FORCE is which?As per your syllabus, the dimensional formula of ENERGY (joule) is which?As per your syllabus, the dimensional formula of MASS DENSITY is which?As per your syllabus, the dimensional formula of VELOCITY is which?As per your syllabus, two physical quantities can be added or subtracted only if which condition holds?As per your syllabus, Ex 1.4, which formula for kinetic energy is dimensionally INCORRECT?As per your syllabus, a DIMENSIONALLY CORRECT equation is necessarily which?As per your syllabus, Ex 1.5, the period of a simple pendulum T derived from dimensional analysis (l, g, m) giAs per your syllabus, the dimensions of PRESSURE are which?As per your syllabus, ANGLE has which dimensions, since it is the ratio of two lengths (arc/radius)?