Luminous intensity is the intensity of ________

(a)

Laser light

(b)

UV light

(c)

visible light

(d)

IR light

The value of the atmospheric pressure at sea level is

(a)

76 cm of mercury column

(b)

760 cm of mercury column

(c)

176 cm of mercury column

(d)

7.6 cm of mercury column

The distance from the pole to the focus is called

(a)

Pole length

(b)

focal length

(c)

principal axis

(d)

None of the above

Symbol of Mercury is

(a)

Ag

(b)

Hg

(c)

Au

(d)

Pb

The burning of matchstick is an example for chemical reaction based on______

(a)

Contact in physical states

(b)

electricity

(c)

light

(d)

catalyst

The plant body of algae is called as ______.

(a)

stem

(b)

thallus

(c)

leaf

(d)

root

Soil erosion is prevented by____________plants.

(a)

Algae

(b)

Fungi

(c)

Bryophytes

(d)

Pteridophytes

Which one of the following is an input device?

(a)

Speaker

(b)

Keyboard

(c)

Monitor

(d)

Printer

If you apply equal amount of heat to a solid, liquid and gas individually, which of the following will have more expansion?

(a)

Solid

(b)

Liquid

(c)

Gas

(d)

All of above

Aerated water contains

(a)

air

(b)

oxygen

(c)

carbon dioxide

(d)

nitrogen