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AGARWAL PHYSICS RAVI AGARWAL (M.Sc.)-9913650950/9374727052
CH.2 TIME: 30 MIN.
1_________ is the dimensional formula of Electric intensity.
2 A cube has numerically equal volume and surface area. The volume of such a cube is______________.
3 N/kg is the unit of __________.
4 A laser signal sent toward the Jupiter returns after t seconds. If C is the speed of light, then the distance of the Jupiter from the observer is________________.
5 Suppose we adopt the new unit of length, which equals x metre. The area 1m2 expressed in terms of the new unit has magnitude___________.
6 The dimension of EMF in terms of Current A is______________.
7 If force, length and time would have been the fundamental units, what would have been the dimensional formula for mass?
8 Unit of specific resistance is______________.
9 The dimensional formula of Calorie is________________.
10 The equation of a wave is given by , where is angular velocity and v is linear velocity. The dimension of K are_________________.
11 A thin copper wire of length l metre increase in length by 2% when heated through 10 . What is the percentage increase in area when a square copper sheet of length l metre is
heated through 10 ?
12 The best way to express the product 17.8 3.1143 = 55.4354 is_________.
13 The dimensional formula for Capacitance is____________________.
14 The dimensions of Gravitational constant is ___________________.
15 Parsec is the unit of____________________.
16 The dimension of is ____________.
17 Suppose the torque acting on any body is given by , where =angular speed, L = Angular momentum, I= Moment of Inertia. The dimensional formula for KM is same as that of____________.
18 Dimension of Velocity gradient is __________.
19 The mass of a block is 87.2g and its volume is 25 cm3. Its density upto correct significant figures is________________________.
20 If error in measuring diameter of a circle is 4%, the error in radius of the circle is ___________.
WINNERS DON’T DO DIFFERENT THINGS, THEY DO THE THINGS DIFFERENTLY.
SPACE FOR ROUGH WORK