The speed of light will be minimum while passing through :

• Glass
• Vacuum
• Air
• Water

Which kind of Power accounts for the largest share of power generation in India ?

• Hydro-electric
• Solar
• Thermal
• Nuclear

Electric appliances have star rating ( upto 5 stars) on them. More the number of stars :

1. longer is the life span of the appliance
2. more stringent is the quality checks
3. Higher is the energy efficiency of the appliance

Which of the above is / are correct ?

• 1 only
• 3 only
• 1 and 2 only
• 1, 2 and 3

Usually OMR sheets are used in most of the competitive examinations. The full form of OMR is :

• Optical Mark Response
• Optical and Magnetic Reader
• Optical and Magnetic Record
• Optical Mark Recognition

Normally, the substances that fight against diseases in human body are known as :

• Antibodies
• Deoxyribo nucleic acid
• Ribo nucleic acid
• Enzymes

Cobalt-60, commonly used in radiation therapy, emits :

• Alpha rays
• Beta rays
• Gamma rays
• X-rays

Einstein received Nobel Prize for his theory of :

• Relativity
• Photoelectricity
• Brownian Motion
• None of these

The science dealing with the study of phenomena at very low temperature is known as :

• Refrigenics
• Cryogenics
• Cytogenics
• Frozenics

The process by which energy is generated in the Sun is :

• Nuclear fusion
• Nuclear fission
• Both nuclear fusion and nuclear fission
• The burning of gases

The number of protons in an alpha particle is :

• one
• two
• three
• four