Q.1) A light year is a measure of
(1) Speed(2) Velocity
(3) Distance
(4) Time
Distance
Q.2) A device which is used to limit the current in an electrical circuit is called a -
(1) Grid(2) Fuse
(3) Hub
(4) Conductor
Conductor
Q.3) Two rods, one of copper and other of steel, experience the same up thrust when placed in water. Thus, both have –
(1) equal volume(2) equal weight
(3) equal density
(4) equal mass
equal volume
Q.4) Minimum numbers of unequal vectors which can give zero resultant are
(1) Two(2) Three
(3) Four
(4) More than four
Three
Q.5) Water is not suitable as a calorimetric substance because it –
(1) has high specific heat(2) is a good conductor
(3) has high boiling point
(4) low latent heat of vaporization
has high specific heat
Q.6) Water is not suitable as a calorimetric substance because it –
(1) has high specific heat(2) is a good conductor
(3) has high boiling point
(4) low latent heat of vaporization
has high specific heat
Q.7) Water is not suitable as a calorimetric substance because it –
(1) has high specific heat(2) is a good conductor
(3) has high boiling point
(4) low latent heat of vaporization
has high specific heat
Q.8) Water is not suitable as a calorimetric substance because it –
(1) has high specific heat(2) is a good conductor
(3) has high boiling point
(4) low latent heat of vaporization
has high specific heat
Q.9) Water is not suitable as a calorimetric substance because it –
(1) has high specific heat(2) is a good conductor
(3) has high boiling point
(4) low latent heat of vaporization
has high specific heat
Q.10) Water is not suitable as a calorimetric substance because it –
(1) has high specific heat(2) is a good conductor
(3) has high boiling point
(4) low latent heat of vaporization
has high specific heat
Q.11) Water is not suitable as a calorimetric substance because it –
(1) has high specific heat(2) is a good conductor
(3) has high boiling point
(4) low latent heat of vaporization
has high specific heat
Q.12) Water is not suitable as a calorimetric substance because it –
(1) has high specific heat(2) is a good conductor
(3) has high boiling point
(4) low latent heat of vaporization
has high specific heat
Q.13) Water is not suitable as a calorimetric substance because it –
(1) has high specific heat(2) is a good conductor
(3) has high boiling point
(4) low latent heat of vaporization
has high specific heat
Q.14) Water is not suitable as a calorimetric substance because it –
(1) has high specific heat(2) is a good conductor
(3) has high boiling point
(4) low latent heat of vaporization
has high specific heat
Q.15) Water is not suitable as a calorimetric substance because it –
(1) has high specific heat(2) is a good conductor
(3) has high boiling point
(4) low latent heat of vaporization
has high specific heat
Q.16) Water is not suitable as a calorimetric substance because it –
(1) has high specific heat(2) is a good conductor
(3) has high boiling point
(4) low latent heat of vaporization
has high specific heat
Q.17) Water is not suitable as a calorimetric substance because it –
(1) has high specific heat(2) is a good conductor
(3) has high boiling point
(4) low latent heat of vaporization
has high specific heat
Q.18)Which among the following waves is used for communication by artificial satellites?
(1) Micro waves(2) Radio waves
(3) A. M.
(4) Frequency of 1016 series
Micro waves
Q.19) Which among the following types of coal produces most heat per unit?
(1) Coal(2) Lignite
(3) Anthracite
(4) Pit
Anthracite
Q.20) When a body falls from an aeroplane, there is increase in its –
(1) Kinetic energy(2) Mass
(3) Acceleration
(4) Potential energy
Kinetic energy
