Contribution of physics in technology and society - class-IX

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

To holding the weight force will act vertically, 

Science is defined as the systematic study of the structure and behavior of the physical and natural world through observation and experiment.

Dr. Vikram Sarabhai is widely regarded as the father of the Indian Space Programme, having founded the Indian National Committee for Space Research (INCOSPAR), which later became ISRO.

The principle of perspective explains that objects appear smaller as they move further away. Shifa's statement that there could be a star bigger than the Moon is scientifically plausible, as many stars are much larger than the Moon, even if they appear as mere points of light due to their immense distance.

ISRO is the acronym for the Indian Space Research Organisation, the national space agency of India.

INSAT-1B was a major Indian communication satellite launched in 1983, which played a crucial role in expanding television broadcasting and telecommunications across India.

Black,since there is no atmosphere to scatter light.

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

A geostationary satellite orbits the Earth at a specific altitude (approximately 35,786 km) above the equator, allowing it to remain fixed relative to a point on the Earth's surface.

The first husband - wife to get the Nobel prize for Physics was PIERRE-CURIE and MARIE CURIE in $1903$ and they shared prize with Antonie Henri Becquerel for their joint research.

The New Horizons spacecraft was launched by NASA in 2006 specifically to conduct a flyby study of the Pluto system and the Kuiper Belt.

Ozone is present throughout the lower atmosphere (troposphere and stratosphere). Most ozone resides in the stratospheric “ozone layer” above Earth's surface.

Nanoscience deals with materials at the scale of 1 to 100 nanometers. At this scale, classical physics fails, and the behavior of matter is governed by quantum mechanical effects.

Aryabhata is the first Indian satellite.

Indian Space Research Organisation (ISRO) was founded in 1969.

Science is Classified into various branches like physics, chemistry, biology, medical science, agriculture science-True

C.V. Raman is the Indian scientist who has contributed in the discovery of inelastic scattering of light by molecules.

The Agni missile is a family of medium to intercontinental range ballistic missiles developed by India, named after one of the five elements of nature. Agni Missiles are long range, nuclear weapons capable surface to surface ballistic missile. 

Neil Armstrong was the first person to set foot on the moon.

The Moon has no atmosphere to scatter light. Twinkling of stars is caused by the refraction of light through the Earth's atmosphere; therefore, it cannot be observed from the Moon.

The messenger satellite launched by NASA was to study  Mercury's chemical composition, geology, and magnetic field.

Prithvi is the first missile which has been developed in India.

'Kalpana -1' is the name given to India's Meteorological Research Satellite launched in 2003