91.

Who betrayed Siraj-ud-Daula in the Battle of Plassey in 1757?

• Hyder Ali

• Mir Qasim

• Mir Jaffar

• Nawab of Awadh

Kelp is

• sulphide mineral of iron

• partially decomposed vegetation

• sea weed rich in iodine content

• an aluminium silicate mineral

The colours of stars depend on their

• temperature

• distance

• radius

• atmospheric pressure

Light from the Sun reaches us in nearly

• 8 min

• 2 min

• 6 min

• 4 min

Radar is used to

• locate sub-merged sub-marines

• receive signal from radio receivers

• detect and locate distant objects

• locate geostationary satellites

Optical fibre works on the principle of

• refraction

• scattering

• interference

• total internal reflection

Which application in Microsoft Office is feasible for preparing presentations?

• Microsoft Excel

• Microsoft Word

• Microsoft Power Point

• Microsoft Publishers

The language which was used to build Internet Pages in the beginning of Internet Technology is

• XML

• HTML

• DHTML

• ASP

Name the branch of zoology that deals with the scientific study of animal behaviour.

• Ecology

• Physiology

• Ethology

• Anatomy

'Barr body' is found in

• sperm

• sertoli cells

• female somatic cells

• male somatic cells