Which gas is used in spite of Freon gas in refrigerator: 
CO2 , H2 , NH3 , N3

In gases, heat is mainly transferred by : 
Conduction , Molecular collision , Convection , Radiation

In gases, heat is mainly transferred by : 
Conduction , Molecular collision , Convection , Radiation

The energy in the stretched bow is : 
Elastic P.E , K.E , Heat energy, Sound energy

which quantity is scalar : 
Force , power , Velocity , torque

Product of mass and velocity of a body is called : 
Torque , Force , work , Momentum

in right angle triangle ,length of base is 4 cm and its hypotenuse is 5 cm, then length of perpendicular is : 
1cm , 3cm , 20cm , 9cm

the value of gravitational field strength near the surface of earth is: 
20Nkg1 , 30Nkg1 , 5Nkg1 , 10Nkg1

In SI system unit of density is : 
Kgm1 , Kgm3 , Kgm2 , Kgm

The base quantity is : 
Mass , Volume , Torque , Momentum

The centre of gravity of irregular shaped body can found with help of : 
Wedge , Metre rod , Plumb line , Screw gauge

A string is stretched by two equal and opposite forces 10N each. The tension in the string is: 
10N , 5N , Zero, 20N

A ball is thrown vertically upward , its velocity at the highest point is : 
10mS1 , 10mS1 , Zero , 100mS1

The number of base units SI are : 
3 , 6 , 7 , 9

A ball is thrown vertically upward , its velocity at the highest point is : 
10mS1 , 10mS1 , 100mS1, Zero

The motion of body about an axis is called : 
Circular Motion , Vibratory Motion , Rotation Motion , Random Motion

The unit of momentum is : 
Nm , Kgms2 , Ns1 , Ns

The unit of momentum is : 
Nm , Kgms2 , Ns1 , Ns

A string is stretched by two equal and opposite forces 10N each. The tension in the string is: 
10N , 20N, 5N , Zero

The number of perpendicular components of a force are : 
1 , 3, 4, 2

A force of 10 n is making an angle of 30 with the horizontal .Its horizontal component will be : 
4N , 5N , 7N , 8.7N

The value of ‘g’ at a height on earth’s radius above the surface of the earth is: 
2g , 1/2g , 1/3g , 1/4g
