Objective Questions

Questions (1250)

#	Question	Topic	Actions
101	What is the unit of quantity of electricity?	Physical Quantities And Units	View
102	The position of a mass at the end of a spring is found as a function of time to…	Physical Quantities And Units	View
103	In a gas experiment, the pressure of the gas is plotted against the reciprocal …	Physical Quantities And Units	View
104	Which of the following is a derived unit?	Physical Quantities And Units	View
105	Which of the following units is equivalent to kg·m/s?	Physical Quantities And Units	View
106	A calorie is a unit of heat or energy and it equals about 4.2 J. Suppose we emp…	Physical Quantities And Units	View
107	The product PV where P is pressure and V is volume has the same unit as:	Physical Quantities And Units	View
108	Which of the following are derived units? (I) Second (II) Newton (III) Kilogram…	Physical Quantities And Units	View
109	Which of the following are derived quantities? (I) Force (II) Temperature (III)…	Physical Quantities And Units	View
110	Which of the following is/are supplementary unit(s)? (I) Kelvin (II) Newton (II…	Physical Quantities And Units	View
111	The velocity of a body moving in viscous medium is given as v = At + B, where t…	Physical Quantities And Units	View
112	Which of the following is the dimension of power?	Physical Quantities And Units	View
113	In which of the following physical quantities are the units correctly indicated…	Physical Quantities And Units	View
114	Which of the following quantities has the same unit as the kilowatt-hour?	Physical Quantities And Units	View
115	The dimensions of entropy are:	Physical Quantities And Units	View
116	If momentum (p), area (A) and time (T) are taken to be fundamental quantities, …	Physical Quantities And Units	View
117	Which of the following physical quantities have no dimension? (i) Stress (ii) S…	Physical Quantities And Units	View
118	If P, Q, R are physical quantities having different dimensions, which of the fo…	Physical Quantities And Units	View
119	Which of the following pairs of physical quantities does not have the same dime…	Physical Quantities And Units	View
120	If the number of radioactive atoms is N(t) = N₀ exp(−kt), where N₀ is the numbe…	Physical Quantities And Units	View
121	In the van der Waals equation P = RT/(V−b) − a/V², the dimensional formula for …	Physical Quantities And Units	View
122	The dimensional formula for a is the same as that for:	Physical Quantities And Units	View
123	Which of the following does not have the same dimensional formula as that for R…	Physical Quantities And Units	View
124	The dimensional formula for ab/RT is:	Physical Quantities And Units	View
125	The dimensional formula of RT is the same as that of:	Physical Quantities And Units	View
126	In the S.I. system, the unit for temperature is:	Physical Quantities And Units	View
127	The dimensions of the ratio of angular momentum to linear momentum is:	Physical Quantities And Units	View
128	If F + (x/density) + C is dimensionally correct, then the dimensions of x are:	Physical Quantities And Units	View
129	The dimensional formula for angular momentum is:	Physical Quantities And Units	View
130	For 10(at+3) = 1, where t is time, the dimension of a is:	Physical Quantities And Units	View
131	The velocity of a moving particle depends on time t as v = at + b where c is a …	Physical Quantities And Units	View
132	F = ax + b² + c where F is force, x is distance and t is time. The dimension of…	Physical Quantities And Units	View
133	If force, time, and velocity are treated as fundamental quantities, then the di…	Physical Quantities And Units	View
134	Which of the following physical quantities do not have the same dimensions?	Physical Quantities And Units	View
135	If L is the inductance and C is the capacitance, then the dimensional represent…	Physical Quantities And Units	View
136	Find the dimensions of b in the equation P = a − bx/t², where P is pressure, x …	Physical Quantities And Units	View
137	The potential energy U of a particle varies with distance x as U = Ax² + B wher…	Physical Quantities And Units	View
138	The number of particles crossing unit area per unit time is N = −D (n₂−n₁)/(z₂−…	Physical Quantities And Units	View
139	If E = energy, G = gravitational constant, I = impulse, and M = mass, the dimen…	Physical Quantities And Units	View
140	Two balls are dropped from same height at 1 second interval of time. The separa…	Kinematics	View
141	A motor bike, initially at rest, picks up a velocity of 72 km/h over a distance…	Kinematics	View
142	Which of the following is a set of vectors?	PHY 101 Past Questions	View
143	The watt is equivalent to:	Physical Quantities And Units	View
144	A 180 N force acts tangentially on a solid disk of radius 0.3 m. Torque exerted…	PHY 101 Past Questions	View
145	Two perpendicular forces each 10 N act on a body. What is the resultant magnitu…	PHY 101 Past Questions	View
146	Which quantity is scalar?	PHY 101 Past Questions	View
147	Which of the following quantities has the same unit as kilowatt-hour?	PHY 101 Past Questions	View
148	The law of universal gravitation can be expressed as	PHY 101 Past Questions	View
149	What magnitude of net force is required to give a 135 kg refrigerator an accele…	PHY 101 Past Questions	View
150	Heat transfer from one body to another occurs at different	PHY 101 Past Questions	View
151	Using g = 9.8 m/s², R_E = 6.38 × 10⁶ m, and G = 6.67 × 10⁻¹¹ Nm²/kg², the calcu…	PHY 101 Past Questions	View
152	Unit vector in direction of vector F = 6i + 5j is	PHY 101 Past Questions	View
153	The moment of inertia about the axis passing through the centre of mass of a fl…	PHY 101 Past Questions	View
154	Find the angular acceleration (in rad/s²) of a flywheel originally at rest to a…	PHY 101 Past Questions	View
155	What is the magnitude of acceleration of the object between 6 s and 10 s? (from…	PHY 101 Past Questions	View
156	A body with moment of inertia I = 5 kg·m² is made to rotate at 1 rad/s, calcula…	PHY 101 Past Questions	View
157	A force of 180 N is applied tangential to a solid aluminium disk of radius 0.3 …	PHY 101 Past Questions	View
158	What is the acceleration of the object between 0 s and 2 s? (from velocity-time…	PHY 101 Past Questions	View
159	A force of 30 N acts on a ball for 1.5 s. If the ball moves off with a speed of…	PHY 101 Past Questions	View
160	Which of the following is a scalar quantity?	PHY 101 Past Questions	View
161	Which statement about brittleness is false?	PHY 101 Past Questions	View
162	A measurement consists of two essential parts: a number/figures and which of th…	Physical Quantities, Units, and Dimensions	View
163	Which of the following is the correct SI base unit for mass?	Physical Quantities, Units, and Dimensions	View
164	The prefix 'micro' (µ) represents which power of ten?	Physical Quantities, Units, and Dimensions	View
165	How many centimeters are there in one meter?	Physical Quantities, Units, and Dimensions	View
166	The volume of a fluid is often measured using which of the following units?	Physical Quantities, Units, and Dimensions	View
167	A measurement is recorded as 8.8 cm with an absolute uncertainty of 0.1 cm. Thi…	Physical Quantities, Units, and Dimensions	View
168	A student measures the length of a nail five times, obtaining values of 2.85 cm…	Physical Quantities, Units, and Dimensions	View
169	The difference between a measured value and the 'true value' of the quantity be…	Physical Quantities, Units, and Dimensions	View
170	Which type of error causes unpredictable fluctuations in an instrument's readin…	Physical Quantities, Units, and Dimensions	View
171	A faulty instrument that consistently gives a reading that is too high is suffe…	Physical Quantities, Units, and Dimensions	View
172	A zero error occurs when an instrument	Physical Quantities, Units, and Dimensions	View
173	A measurement error that occurs when the observer's eye is not positioned perpe…	Physical Quantities, Units, and Dimensions	View
174	Which of the following best describes the accuracy of a measurement?	Physical Quantities, Units, and Dimensions	View
175	A set of measurements that are all very close to each other, but far from the t…	Physical Quantities, Units, and Dimensions	View
176	How many significant figures are there in the number 0.062 cm?	Physical Quantities, Units, and Dimensions	View
177	What is the result of adding 123.5 m and 2.73 m, expressed with the correct num…	Physical Quantities, Units, and Dimensions	View
178	According to the rules for multiplication and division, what is the correct num…	Physical Quantities, Units, and Dimensions	View
179	The number 93,000,000 expressed in scientific notation is	Physical Quantities, Units, and Dimensions	View
180	Which of the following is NOT one of the seven base quantities in the SI system?	Physical Quantities, Units, and Dimensions	View
181	The unit 'Newton' (N) is a derived unit equivalent to which combination of base…	Physical Quantities, Units, and Dimensions	View
182	The radian and steradian are examples of which class of SI units?	Physical Quantities, Units, and Dimensions	View
183	Which of the following physical quantities has the dimensional formula MLT⁻²?	Physical Quantities, Units, and Dimensions	View
184	The dimensions of pressure are the same as the dimensions of	Physical Quantities, Units, and Dimensions	View
185	Which of the following equations is dimensionally consistent?	Physical Quantities, Units, and Dimensions	View
186	If a physical quantity is dimensionless, its dimensional formula is represented…	Physical Quantities, Units, and Dimensions	View
187	The period T of a simple pendulum depends on its length l and the acceleration …	Physical Quantities, Units, and Dimensions	View
188	In the equation F = A sin(Ct), where F is force and t is time, what are the dim…	Physical Quantities, Units, and Dimensions	View
189	If the speed v of a wave depends on tension T (force) and mass per unit length …	Physical Quantities, Units, and Dimensions	View
190	What is the least count of a typical micrometer screw gauge?	Physical Quantities, Units, and Dimensions	View
191	On a vernier caliper, the main scale has divisions of 1 mm and the vernier scal…	Physical Quantities, Units, and Dimensions	View
192	In the context of combining uncertainties, what is the absolute uncertainty in …	Physical Quantities, Units, and Dimensions	View
193	The power rule for combining uncertainties states that if a quantity y is given…	Physical Quantities, Units, and Dimensions	View
194	A student measures the diameter of a wire at three different positions and calc…	Physical Quantities, Units, and Dimensions	View
195	If the zero mark on the vernier scale of a caliper is to the right of the zero …	Physical Quantities, Units, and Dimensions	View
196	The mass of an object is recorded as (75.50 ± 0.50) g. What is the relative (fr…	Physical Quantities, Units, and Dimensions	View
197	Which of the following is a derived unit with a special name in the SI system?	Physical Quantities, Units, and Dimensions	View
198	The dimensional formula for velocity is	Physical Quantities, Units, and Dimensions	View
199	Which of the following quantities has the same dimensions as impulse?	Physical Quantities, Units, and Dimensions	View
200	The dimensions ML²T⁻³ correspond to which physical quantity?	Physical Quantities, Units, and Dimensions	View

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