What is Ivy Mike ?

What is Ivy Mike ?A. First test of hydrogen bomb of United States
B. First test of hydrogen bomb of United Kingdom
C. First test of hydrogen bomb of Soviet Union
D. First test of hydrogen bomb of France

on Nov. 1, 1952 — the U.S. detonated the first hydrogen bomb, resulting in the first successful full-scale thermonuclear weapon explosion.

During rainy season Wooden doors are difficult to open or closure because of ________ ?

During rainy season Wooden doors are difficult to open or closure because of ________ ?

A. Plasmolysis
B. Imbibition
C. Osmosis
D. Diffusion

Wooden door and wooden frame expand during rainy season. On expansion, the door and its frame get misaligned. Hence, doors made of wood are difficult to open or close during the rainy season.
Imbibition is a special type of diffusion that takes place when water is absorbed by solids-colloids causing an increase in volume. Examples include the absorption of water by seeds and dry wood. If it were not for the pressure due to imbibition, seedlings would not be able to emerge from soil.

When did Bahadur Shah Zafar die ________ ?

When did Bahadur Shah Zafar die ________ ?

A. 5 October 1860
B. 6 September 1861
C. 7 November 1862
D. 8 December 1863

Bahadur Shah Zafar or Bahadur Shah II was the last Mughal emperor. He was the second son of and became the successor to his father, Akbar II, upon his death on 28 September 1837. He was a nominal Emperor, as the Mughal Empire existed in name only and his authority was limited only to the walled city of Old Delhi.