1st PUC physics Series-1 December 3, 2020December 23, 2020wefru PUC Science 1st Year Physics Series-1 quiz 0 Created on December 02, 2020 By wefru 1st PUC Physics Series 1 TEST YOUR KNOWLEDGE OF SCIENCE 1 / 10 Q.1 How many numbers of base SI units are there? 7 5 4 2 2 / 10 Q.2 What is the percentage error in the measurement of the kinetic energy of a body, if there is a positive error of 50% in the speed of the body 100% 10% 200% 0% 3 / 10 Q.3 What is the dimensional formula of torque and energy [ML-3T-2] and [MLT-2] [ML2T-2] and [MLT-2] [ML2T-2] and [ML2T2] [MLT2] and [ML2T2] 4 / 10 Q.4 Find the relative error of y, if y=x2 2△x/x (△x)2x (△x)2 △xx 5 / 10 Q.5 Identify the physical parameters that are having the same dimensions from the below-given list:(i) Magnetic field(ii) Energy density(iii) Refractive index(iv) Young’s modulus(v) Dielectric constant (ii) and (iv) (i) and (v) (iii) and (iv) (iv) and (iii) 6 / 10 Q.6 What is the angle between A and B, if A⃗ +B⃗ =C⃗ such that C⃗ is perpendicular to A⃗ and ∣∣A⃗ ∣∣=∣∣C⃗ ∣∣ π π2 π4 3π/4 7 / 10 Q.7 Which the following is a dimensionless quantity Refractive index Gravitational constant Velocity Planck’s constant 8 / 10 Q.8 Calculate the value of the dot product of the two vectors whose magnitudes are 3 units and 4 units and their resultant is 1 unit. -12 units -2 units -22 units -1202 units 9 / 10 Q.9 From the given three fundamental constants, select the combination that gives the dimension of length(i) Newton’s gravitational constant (G)(ii) Speed of light in a vacuum (c)(iii) Planck’s constant (h hcG−−√ Gch32−−−√ hGc52−−−√ √hG/c3/2 10 / 10 Q.10Following are the readings obtained while measuring the diameter of a wire by using the screw gauge0 mm is the main scale reading52 divisions are the circular scale readingWhat is the diameter of the wire if 1 mm on the main scale is equal to the 100 divisions on the circular scale 0.016 cm 0.052 cm 0.15 cm 0.05 cm Your score isThe average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz