Scientists from which country have created the world's first 'water-wave laser' that emits a beam through the interaction of light and water waves -

1) China

2) Israel

3) India

4) USA

Who is called the Father of Indian Archaeology?

1) Alexander Cunningham

2) John Marshall

3) Mortimer Wheeler

4) James Prinsep

Arihant is the name of -

1) an infantry combat vehicle

2) a balliwstic missile

3) an attack helicopter

4) a nuclear powered submarine

Indian Satellite series which is being used for telecommunication system is -

1) Rohini

2) IRS

3) CARTOSAT

4) INSAT

Indian Satellite series which is being used for telecommunication system is -

1) Rohini

2) IRS

3) CARTOSAT

4) INSAT

The time period of revolution of a geo-stationary satellite is -

1) 12 hrs.

2) 24 hrs.

3) 48 hrs.

4) 6 hrs.

Nickel-Cadminum (Ni-Cd) battery is used in -

1) Calculator

2) Cordless electronic appliances

3) Transistors

4) All of the above

India's multitask supersonic fighter plane was named "Tejas" by-

1) Atal Behari Bajpai

2) Air Marshal Jasbir Wali

3) Narendra Modi

4) Abdul Kalam

The 750 MW Rewa Ultra Mega Solar Plant is located in which of the following states ?

1) Kanpur, Uttar Pradesh

2) Nagpur, Maharashtra

3) Rewa, Madhya Pradesh

4) Hyderabad, Telangana

The Y-20 aircraft is a large military transport aircraft of which of the following countries?

1) Japan

2) India

3) China

4) France

Which one of the following statements about a satellite orbiting around the Earth is correct ?

1) Satellite is kept in orbit by remote control from ground station

2) Satellite is kept in orbit by retro-rocket and solar energy keeps it moving around the Earth

3) Staellite requires energy from solar panels and solid fuels for orbiting

4) Satellite does not require any energy for orbiting