1) An ideal standard of measurement of a base quantity has characteristics_______________? a. Accessible b. Invariable c. Transportable d. Only a and b are correct
|
||||
2) Total uncertainty, in the result obtained from the subtraction of two measurements, is equal to_______________? a. Sum of their absolute uncertainties b. The difference of their absolute uncertainties c. The product of their absolute uncertainties d. Division of their absolute uncertainties
|
||||
3) Which one is the highest power multiple ? a. Giga b. Beta c. Mega d. Deca
|
||||
4) One pico stands for_________________? a. 10 raised to power -15 b. 10 raised to power -12 c. 10 raised to power -9 d. 10 raised to power -6
|
||||
5) Unit of G is ______________? a. Nm2Kg2 b. Nm2Kg c. Nm2Kg-2 d. None
|
||||
6) The unit of force is _________ and its symbol is ______________ Which is the correct pair ? a. Newton, n b. Newton, N c. newton, n d. newton, N
|
||||
7) How many main frontiers of fundamental science ? a. 1 b. 2 c. 3 d. 4
|
||||
8) One light year is equal to________________? a. 9.5x1015m b. 9.5x1015sec c. 9.5x1015Km d. 9.5x1015cm
|
||||
9) Which one is the derived quantity in SI units _____________? a. Electric current b. Electric charge c. Plane angle d. Amount of substance
|
||||
10) Which one is the correct representation of the unit of pressure ? a. Newton/Meter2 b. newton/meter2 c. Newton/meter2 d. newton/Meter2
|
||||
11) Which one is the dimensionally correct equation ? a. f=vt b. S=Vit+1/2at2 c. V=St d. V=f/t
|
||||
12) Zero error of the instrument is a type of_________________? a. Random error b. Personal error c. Systematic error d. Classified error
|
||||
13) In multiplication and division of measurement______________? a. Percentage uncertainties are added b. Absolute uncertainties are added c. Percentage uncertainties are divided d. Absolute uncertainties are divided
|
||||
14) The number of significant figures in 5.400 is________________? a. 3 b. 5 c. 2 d. None
|
||||
15) To reduce the uncertainty in the timing experiment______________? a. Highly precise instrument b. Conduct at room temperature c. Count number of vibration d. Both a and C
|
||||
16) The number of significant figures in the length of a bar 6200mm measured by meter rod is_______________? a. 4 b. 3 c. 2 d. None of these
|
||||
17) The number 76.85 is rounded off up to two significant figures as_____________? a. 76.8 b. 77 c. 76.9 d. None of these
|
||||
18) Which of the following is not a correct representation method for prefixes______________? a. 1mm b. 10km c. 1000um d. Both A and B
|
||||
19) The rotational K.E of the hoop is equal to the______________? a. its translational K.E b. half than its translational K.E c. double than its translational K.E d. four times than its translational K.E
|
||||
20) A hoop and disc have same mass and radius. Their rotational K.E are related by an equation______________? a. K.E hoop = K.E disc b. K.E hoop = 2K.E disc c. K.E hoop = 1/2K.E disc d. K.E hoop = 4K.E disc
|
||||
21) The critical speed of an artificial satellite is_______________? a. 8 Kms-1 b. 8.1 Kms-1 c. 7.9 Kms-1 d. 8 ms-1
|
||||
22) Geostationary satellite completes one rotation around the earth in_______________? a. 3 hours b. 6 hours c. 12 hours d. 24 hours
|
||||
23) The radius of geostationary orbit from the centre of the earth is nearly______________? a. 42000km b. 36000km c. 24000 km d. 18000 km
|
||||
24) According to Einstein, the gravitational interaction is possible between_______________? a. material objects only b. material objects and electromagnetic radiation only c. electromagnetic radiations d. none of the above
|
||||
25) One radian is equal to______________? a. 67.3° b. 57.3° c. 87.3° d. 60°
|
||||
26) The period of a circular motion is given by_______________? a. T = πv b. T = πw c. T = 2πr d. T = 2πr/v
|
||||
27) The direction of the linear velocity of a body moving in a circle is______________? a. along the axis of rotation b. along the tangent c. directed towards the centre d. directed away from the centre
|
||||
28) hen a body moves in a circle, the angle between its linear velocity and angular velocity is always_______________? a. 180° b. 0° c. 90° d. 45°
|
||||
29) The circumference subtends an angle________________? a. π radian b. 2π radian c. π/2 radian d. 4π radian
|
||||
30) The relation between linear and angular acceleration is______________? a. a = a x r b. a = r x a c. a = a x r d. r = a x a
|
||||
31) When a body is whirled in a horizontal circle by means of a string the centripetal force is supplied by______________? a. Mass of a body b. Velocity of body c. The tension in the string d. Centripetal acceleration
|
||||
32) Centripetal force performs_______________? a. Maximum work b. Minimum work c. Negative work d. No work
|
||||
33) When a body moves in a circle of radius r with linear speed V its centripetal force is_______________? a. mV/r2 b. mV/r c. mV2/r d. mV2/r2
|
||||
34) A stone is whirled in a vertical circle at the end of a string. When the stone is at the highest position the tension in the string is______________? a. Maximum b. Zero c. Equal to the weight of the stone d. Less than the weight of the stone
|
||||
35) The span of the broad jump depends upon_______________? a. Mass of the jumper b. Height of jump c. Angle of projection d. None
|
||||
36) In case of planets the necessary acceleration is provided by______________? a. Gravitational force b. Frictional force c. Coulomb force d. Centripetal force
|
||||
37) If a car moves with a uniform speed of 2 ms-1 in a circle of radius 0.4. Its angular speed is______________? a. 4 rad. S-1 b. 5 rad. S-1 c. 1.6 rad. S-1 d. 2.8 ms-1
|
||||
38) A body can have constant velocity when it follows a_____________? a. Elliptical path b. Circular path c. Parabolic path d. Rectilinear path
|
||||
39) A body moving along the circumference of a circle completes two revolutions. If the radius of the circular path is R the ration of displacement to the covered path will be_____________? a. πR b. 2π R c. 0 d. 4πR
|
||||
40) The angular speed for daily rotation of the earth in rad S-1 is______________? a. 7.3 x 10 radians/second b. 7.3 x 5 radians/second c. 3.7 x 10 7.3 x 5 radians/second d. 7.3 x 10-5 radians/second
|