UPPSC 2018 GS-I General science
Question

Which of the following was invented by Wilhelm Roentgen?

Answer & Solution

Answer: (Detailed Solution Below)

Option B: X-Ray Machine

Detailed Solution:

The correct answer is “X-Ray Machine”.

X-Ray Machine was invented by Wilhelm Roentgen. He discovered X-rays in 1895, a type of electromagnetic radiation that can penetrate many materials.

This led to the development of X-ray machines, which are widely used in medical imaging and other fields.

Similar Questions:

Which one of the following is not correctly matched?
  1. Manometer–Pressure
  2. Carburetor–Internal combustion engine
  3. Cardiograph–Heart movement
  4. Seismometer–Curvature of surface
Match list-I with list-II and select the correct answer using the code given below:
List-I (Radioisotope) - List-II (Diagnostic use)

A. Arsenic - 74 - 1. Activity of thyroid gland
B. Cobalt - 60 - 2. Blood disorder
C. Iodine-131 - 3. Tumor
D. Sodium-24 - 4. Cancer

Code:
A B C D
  1. 1 2 3 4
  2. 4 3 1 2
  3. 3 4 1 2
  4. 4 3 2 1
Which one of the following hormones stimulates pancreas for the production of digestive juice?
  1. Rennin
  2. Trypsin
  3. Secretin
  4. Pepsin
Which one of the particles, claimed to have been discovered, can put Albert Einstein's theory of Relativity to the risk of being proved wrong?
  1. Microwave photons
  2. Neutrinos
  3. Liquid crystal
  4. Light emitting diodes
The instrument used to measure the blood pressure is:
  1. Tachometer
  2. Sphygmomanometer
  3. Actiometer
  4. Barometer
What is the source of electrical energy in an artificial satellite?
  1. Solar cells
  2. Mini nuclear reactor
  3. Dynamo
  4. Thermopile
It is comfortable to wear white clothes in summer because:
  1. They Reflect all the heat that is falling it
  2. Disfigure all the heat transmitted in the body
  3. They absorb sweat
  4. They provide coolness to the eyes
Which one of the following instruments is used for locating submerged objects in an ocean?
  1. Audiometer
  2. Galvanometer
  3. Sextant
  4. SONAR
Given below are two statements, one is labelled as Assertion (A) and the other as Reason (R).

Assertion (A): Turkish invasions on India were successful.
Reason (R): There was no political unity in North India.

Select the correct answer from the codes given below: Codes:
  1. Both (A) and (R) are true and (R) is the correct explanation of (A)
  2. Both (A) and (R) are true, but (R) is not the correct explanation of (A)
  3. (A) is true, but (R) is false
  4. (A) is false, but (R) is true
The controversial Terminator Technology backed by developed nations seeks to provide:
  1. bio technologically improved variety of seeds which are ensured to yield sterile seed for next generation
  2. transgenic seeds which ensure no terminating passage of good traits generation after generation
  3. selective termination of crop diseases
  4. hybrid seeds that can be eaten but not grown
What is the source of electric energy in an artificial satellite?
  1. Thermopile
  2. Solar cells
  3. Dynamo
  4. Mini nuclear reactor
Which one of the following is not correctly matched?
  1. Anemometer - Wind speed
  2. Ammeter - Electric current
  3. Tachometer - Pressure difference
  4. Pyrometer- High temperature