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## Numerical Problems on Measurement, Physics 11

See here solved numerical problems on Measurement (new course) included in the Physics course for First Year students.

 S No. Statement of problem Problem 1 A circular pizza into 3 equal parts, one piece of pizza is taken out. Estimate the degree measure of the single piece of pizza and convert the measure into radians. What is the radian measure of the angle of the remaining part of pizza?See Solution Problem 2 The length of a a pendulum is (1.5 ± 0.01) m and the acceleration due to gravity is taken to be (9.8 ± 0.1) ms-2. Calculate the time period of the pendulum with uncertainty in it.See Solution Problem 3 Determine the area of a rectangular sheet with length (l ± Δl) = (1.50 ± 0.02) m and width (w ± Δw) = (0.20 ± 0.01) m. Calculate the area (A ± ΔA).See Solution Problem 4 Calculate the answer up to appropriate numbers of significant digits:(a) 246.24 + 238.278 + 98.3 (b) (1.4 × 2.639) + 117.25(c) (2.66 × 104) – (1.03 × 103) (d) (112 × 0.456)/(3.2 × 120)(e) 168.99 × 9 (f) 1023 + 8.5489See Solution Problem 5 Question 5: Calculate the answer up to appropriate numbers of significant digits.See Solution Problem 6 Question 6: Find the dimensions ofPlanck’s constant ‘h’ from formula E = hf, where E is energy and f is frequency.Gravitational constant ‘G’ from the formula F=G (m_1 m_2)/r^2 where F is force m1 and m2 are masses of the objects and ‘r’ is the distance between the centers of the objects.See Solution Problem 7 Question 7: Show that (a) KE = ½ mv2 (b) PEg = mghSee Solution

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