NEET 3.0 (2024) Units and Dimensions DPP-4 PDF

1 Yakeen NEET 3.0 (2024) Units and Dimension DPP-04 1. When...

1 Yakeen NEET 3.0 (2024) Units and Dimension DPP-04 1. When Bernoulli’s theorem is expressed as 6. If x = at + bt2, where x is in metre and t in hour P 1 v2 (hr), then unit of b will be + + h = constant (1) m2/hr g 2 g (2) m (3) m/hr (4) m/hr2 the dimensions of the constant on the right hand side of the equation are given as 7. The equation of the stationary wave is (1) M0L0T0 (2) M0L1T0  2ct   2x  (3) M1L0T0 (4) M1L2T–2 y = 2A sin   cos         Which of the following statements is wrong? 2. Pressure gradient dp/dx is the rate of change of (Symbols have their usual meaning) pressure with distance. What are the dimensions of (1) the unit of ct is same as that of  dp/dx? (2) the unit of x is same as that of  (1) ML–1T–1 (2) ML–2T–2 (3) the unit of 2 c/ is same as that of 2x/t (3) ML–1T–2 (4) ML–2T–1 (4) the unit of c/ is same as that of x/ 3. If energy (E). velocity (V) and Force F be taken as 8. Time period of a body under S.H.M. is represented Fundamental physical quantity, then what are the dimension of mass. by: T  PaDbSc, where P is pressure, D is density (1) EV2 (2) EV–2 and S is surface tension, then the values of a, b and c are (3) FV–1 (4) FV–2 force (given  surface tension = ) length 4. A and B are two physical quantities having different dimensions. Then which of the following (1) –3/2, 1/2, 1 (2) –1, –2, 3 operation is dimensionally correct? (3) 1/2, –3/2, –1/2 (4) 1, 2, 1/3 (1) A + B A 9. A system has basic dimensions as density [D], (2) log velocity [V] and area [A]. The dimensional B representation of torque in this system is: A (3) (1) [AV2D] (2) [A2VD] B (3) [A3/2V2D] (4) [AV3/2D] (4) eA/B 10. If unit of length, mass and time each be doubled 5. For 10(at+3), the dimension of a is the unit of work is increased by (1) M0 L0 T0 (2) M0 L0 T1 (1) 8 times (2) 4 times (3) M0 L0 T–1 (4) None of these (3) 6 times (4) 2 times  2 Note: Kindly find the Video Solution of DPPs Questions in the DPPs Section. Answer Key 1. (2) 6. (4) 2. (2) 7. (4) 3. (2) 8. (1) 4. (3) 9. (3) 5. (3) 10. (4) PW Web/App - https://smart.link/7wwosivoicgd4 Library- https://smart.link/sdfez8ejd80if