UPPSC 2018 GS-I General science
Question

Einstein was award Nobel Prize for which of his theories?

Answer & Solution

Answer: (Detailed Solution Below)

Option B: Theory of photo electricity

Detailed Solution:

The correct answer is “Theory of photo electricity”.

The Nobel Prize in Physics 1921 was awarded to Albert Einstein for his discovery of the law of the photoelectric effect.

The photoelectric effect is the phenomenon of electrons being emitted from a material when it absorbs electromagnetic radiation, such as visible light or ultraviolet radiation.

This effect was first observed by Heinrich Hertz in 1887 and later explained by Albert Einstein in 1905.

The photoelectric effect is important in many fields, including solar energy and the design of electronic devices such as photodiodes and solar cells.

Similar Questions:

Heavy water is a type of
  1. Coolant
  2. Moderator
  3. Ore
  4. Fuel
Which one of the following minerals is necessary to control heart beat?
  1. Sodium
  2. Sulphur
  3. Potassium
  4. Iron
Einstein was award Nobel Prize for which of his theories?
  1. Theory of relativity
  2. Theory of photo electricity
  3. Theory of specific heats
  4. Theory of Brounian motion
Which one of the following concerns soil?
  1. Edaphic
  2. Climatic
  3. Biotic
  4. Topography
Which of the following is not correctly matched ?
  1. Vitramin B6 - Rice Bran
  2. Vitamin B2 - Cod-liver oil
  3. Vitamin E - Wheat Germ Oil
  4. Vitamin K - Alfalafa
Thermometer is an instrument that:
  1. Measures the heat
  2. Measures the temperature
  3. Automatically controls the temperature of a body
  4. Self-regulate the body
How much the maritime distance between India and Europe was reduced after the construction of the Suez Canal?
  1. 5,000 km
  2. 7,000 km
  3. 8,000 km
  4. 10,000 km
In which of the following countries did Prime Minister Modi start 'Ramayana Circuit' on May 11, 2018?
  1. Sri Lanka
  2. Myanmar
  3. Nepal
  4. Indonesia
It is difficult to walk on ice than on road because:
  1. Ice is harder than road
  2. Road is harder than ice
  3. Ice does not offer any reaction when we push it with our foot
  4. Ice has a lesser friction than road
Arrange the following coffee producing countries in descending order of their coffee production (2016, quantity) and select the correct answer from the codes given below:

A. Colombia
B. Vietnam
C. Brazil
D. Indonesia

Codes:
  1. D, C, B, A
  2. C, B, A, D
  3. B, D, C, A
  4. C, A, B, D
Which one of the following is NOT correctly matched?(Substance) (Use)
  1. Silver bromide - Artificial photosynthesis
  2. Silver iodide - Artificial rain
  3. Lithium bicarbonate - Treatment of rheumatism
  4. Milk of magnesia - Antacid
A man feels unpleasant due to humidity and heat. The reason for this is:
  1. More sweating
  2. Less sweating
  3. Sweat does not evaporate due to humidity
  4. Sweat is not formed due to humidity