A man inside a moving train tosses a coin, the coin falls behind him. The train is moving:

• forward with a uniform speed
• backward with a uniform speed
• forward with deceleration
• forward with acceleration
Correct Option: D  [ forward with acceleration ]

Remark:

What is the main property of mercury for using it in a clinical thermometer?

• Good conductor of heat
• High density
• Good conductor of electricity
• Easily available
Correct Option: A  [ Good conductor of heat ]

Remark:

Through the fused sodium chloride, electric current can pass out due to the presence of:

• Free electron
• Free ion
• Free molecule
• None of these
Correct Option: B  [ Free ion ]

Remark:

Which of the following does not have red blood cells?

• Snake
• Peacock
• Frog
• Earthworm
Correct Option: D  [ Earthworm ]

Remark:

Rickets is a disease caused by the deficiency of

• Vitamin- K
• Vitamin- D
• Vitamin- B1
• Vitamin- A
Correct Option: B  [ Vitamin- D ]

Remark:

Fathom is unit of:

• Depth
• Distance
• Frequency
• Sound
Correct Option: A  [ Depth ]

Remark:

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 a non metal that remains liquid at room temperature?

• Phosphorous
• Bromine
• Chlorine
• Helium
Correct Option: B  [ Bromine ]

Remark:

The SI unit of temperature is

• Temperature
• Ampere
• Watt
• Kelvin
Correct Option: D  [ Kelvin ]

Remark:

Which of the following retains the information when the power to the system is shut down?

• CPU
• ROM
• RAM
• DIMM
Correct Option: B  [ ROM ]

Remark: