What type of lens is a magnifying glass?
Plano-Concave
Plane Glass
Convex
Concave
When a spring is released, its potential energy is converted to
Electrical Energy
Magnetic Energy
Light Energy
Kinetic Energy
How much heat is required to raise the temperature of 1g of water by 1 degree C.
100 Joules
100 Calories
1 Calorie
1 Joule
The presence of charge on a substance can be confirmed by a
Thermometer
Ammeter
Gold Leaf Electroscope
Electrodes
What is the speed of sound in air in meters per second (at a pressure of one atmosphere and temperature of 25 degree C)?
110
330
230
490
The SI unit of electric current is
Mho
Farad
Ohm
Ampere
The wire of an electric bulb is known as the
Luminous Wire
Radiator
Heating Element
Filament
Which of the following is not a good heat insulator?
Wood
Wool
Feathers
Iron
What is the name of the point where light rays from infinity coverge after passing through a lens?
Focus
Parabola
Center
Infinity
Nuclei of atoms that make up a newborn baby were made in:
In the mother's body
Ancient stars
The food the mother eats before giving birth
The earth