Einstein received Nobel Prize for his theory of :

• Relativity
• Photoelectricity
• Brownian Motion
• None of these
Correct Option: B  [ Photoelectricity ]

Remark:

Which of the following is used in pencils ?

• Graphite
• Silicon
• Charcoal
• Phosphorous
Correct Option: A  [ Graphite ]

Remark:

Bluetooth is a technology in communication which features

• wireless communication using radio waves
• wireless communication using infrared rays
• wireless communication using microwaves
• wireless communication using laser
Correct Option: A  [ wireless communication using radio waves ]

Remark: Bluetooth is a wireless technology using radio frequencies to share data over a short distance.

Sodium stearate is a salt and is used?

• in gunpowder
• in Paint
• to make Soap
• to make fertilizer
Correct Option: C  [ to make Soap ]

Remark:

ATM means:

• All Time Money
• Automatic Teller Machine
• Automated Teller Machine
• Any Time Money
Correct Option: C  [ Automated Teller Machine ]

Remark:

Check the odd term out:

• Internet
• Linux
• Unix
• Windows
Correct Option: A  [ Internet ]

Remark:

All biological reaction in a living organism come under

• Anabolism
• Catabolism
• Metabolism
• Metamorphosis
Correct Option: C  [ Metabolism ]

Remark: "Metabolism" involves two main categories of reactions:
1.Catabolism: This is the breakdown of larger molecules into smaller ones.

2. Anabolism: This is the synthesis of larger molecules from smaller ones.

An electric bulb has a filament made of

• Boron carbide
• Tungsten
• Tantalum
• Rhenium
Correct Option: B  [ Tungsten ]

Remark:

The phenomenon involved in propagation of light waves throuhg optical fibres is :

• Dispersion of light
• Scattering of light
• Total internal reflection of light
• Refraction of light
Correct Option: C  [ Total internal reflection of light ]

Remark:

Which gas is used as fire extinguisher?

• Nitrogen dioxide
• Carbon monoxide
• Carbon dioxide
• Nitrous oxide
Correct Option: C  [ Carbon dioxide ]

Remark: