Tag: physical world

Questions Related to physical world

White colour of the cloud is due to ___________________.

physics physical world introduction to science contribution of physics in technology and society physics in relation to other sciences

  1. reflection of seven colors of light

  2. refraction of seven colors of light

  3. scattering of seven colors of light

  4. absorption of seven colors of light

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Correct Option: C
Explanation:

Large dust particles and water droplets scatter all wavelength almost equally. Hence clouds appears white.

A person walks $100$m, holding a suitcase of weight $100$N. The work done by the applied force is _________J.

physics physical world introduction to science contribution of physics in technology and society physics in relation to other sciences

  1. $10000$

  2. $100$

  3. $Zero$

  4. $5000$

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Correct Option: C
Explanation:

To holding the weight force will act vertically, 

Displacement of the bock is horizontal 
Work done $= F \cdot a = F a cos \theta=0 $

Name the latest theory of fundamental physics in which the basic entity is a one-dimensional object as against the 'zero-dimensional' points representing the elementary particles.

physics physical world introduction to science contribution of physics in technology and society physics in relation to other sciences

  1. String theory

  2. Supersymmetry

  3. Symmetry

  4. Superstring theory

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Correct Option: A
Explanation:

In String theory, the basic entity is a one dimensional object.

What was the biggest change in fundamental $1$, studies of systematic is:

physics physical world introduction to science contribution of physics in technology and society physics in relation to other sciences

  1. Recognition of sharing of resources.

  2. Recognition of sharing of similarity.

  3. Recognition of sharing of physical law.

  4. Recognition of sharing of celestial body.

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Correct Option: A

Nano science is the study of fundamental principles that nature permits at the nanoscale or less than that $i e . . . . . . . . . . . .$ 

physics physical world introduction to science contribution of physics in technology and society physics in relation to other sciences

  1. The classical mechanics

  2. the wave mechanics

  3. The quantum mechanics

  4. none of these

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Correct Option: C

Who was the first woman to fly in space?

physics physical world introduction to science contribution of physics in technology and society physics in relation to other sciences

  1. Valentina Tereshkova

  2. Rhea Seddon

  3. Sally Ride

  4. Anna Fisher

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Correct Option: A
Explanation:

Valentina Vladimirovna Tereshkova is a retired Soviet cosmonaut and the first woman to have flown in space, having been selected from more than four hundred applicants and five finalists to pilot Vostok 6 on 16 June 1963.