Question : Who invented the jet engine?

Option 1: Karl Benz

Option 2: Sir Frank Whittle

Option 3: Thomas savery

Option 4: Michael Faraday

Question : Who invented Dynamite?

Option 1: John Boyd Dunlop

Option 2: Alfred Nobel

Option 3: James Simons

Option 4: Peter Hargreaves

Question : Who admidst the following eminent Indian Journalists was conferred the Magsaysay Award?

Option 1: Frank Moraes

Option 2: Kushwant Singh

Option 3: Arun Shourie

Option 4: Girilal Jain

Question : Who was the first American to win the Nobel Peace Prize?

Option 1: Abraham Lincoln

Option 2: George Bush

Option 3: Theodore Roosevelt

Option 4: Franklin Roosevelt

Question : The area of the circle with radius $y$ is $w$. The difference between the areas of the bigger circle (with radius $y$) and that of the smaller circle (with radius $x$) is $w^1$. So, $\frac{x}{y}$ is equal to:

Option 1: $\sqrt{1-\frac{w^1}{w}}$

Option 2: $\sqrt{1+\frac{w^1}{w}}$

Option 3: $\sqrt{1+\frac{w}{w^1}}$

Option 4: $\sqrt{1-\frac{w}{w^1}}$