Find the laplace transformation of

L(tcosat) 

Find the laplace transformation of\(t^{2}sinat\)

Find the laplace transformation of\(te^ {-4t}sin3t\)

Find the laplace transformation of\(f(t) =|t-1|+|t+2|+|t+1|+|t-2|,t>=0\)

Which is the second country in the world to land a Rover on Mars?

1) Russia

2) Japan

3) China

4) India

Calamine and Sphalerite are the ores of -

1) Iron

2) Mica

3) Zinc

4) Copper

The size of particles being studied in nano-technology is about -

1) 1A - 10 nm

2) 1 - 100nm

3) 1-50 u

4) 1 mm - 10 mm

Who is regarded as the pioneer of Atomic energy in India?

1) A. P. J. Abdul Kalam

2) Homi J. Bhabha

3) Raja Ramanna

4) Homi Sethna

Who amongst the following is a pioneer in discovering the heating effect of electric current?

1) Isaac Newton

2) Galileo Galilei

3) James P. Joule

4) J.J. Thomson

Which one of the following is correct about Pinaka?

1) It is a multi-barrel rocket system

2) It is a type of battle tank

3) It is an advanced submarine

4) It is an indigenously deve-loped drone system

Which of the following defence equipment's/ systems has not been developed or upgraded by Defence Research and Development organization (DRDO)?

1) Arjun Mk-1A

2) Sniper Rifles

3) Light Combat Aircraft Mk-1A

4) PINAKA-Extended Range, Guided