Physics
The large collection of stars, dust and gas held together by gravitational attraction between components is known as
Cluster
Atmosphere
Galaxy
Sun Family
Galaxy
The term galaxy refers to a large collection of stars, dust, and gas clouds which are held together by gravitational attraction.The smallest galaxies may contain only a few hundred thousand stars, while the largest galaxies have thousands of billions of stars. The Milky Way galaxy contains our solar system.
Galaxy The term galaxy refers to a large collection of stars, dust, and gas clouds which are held together by gravitational attraction.The smallest galaxies may contain only a few hundred thousand stars, while the largest galaxies have thousands of billions of stars. The Milky Way galaxy contains our solar system.
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C. Angle
D. Solid Angle
Flemings ”Left hand Rule” is associated with the effect of
A. Electric field on current
B. Magnetic field on magnet
C. Electric field on magnet
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The sky appears blue due to
A. Rayleigh scattering
B. Mie scattering
C. Back scattering
D. None of the above
Vehicles use ________ to see the objects coming from behind.
A. Concave lens
B. Convex lens
C. Convex mirror
D. Concave mirror
Which elements are malleable and good conductors of electricity?
A. Tin and silver
B. Iodine and silver
C. Tin and xenon
D. Iodine and xenon
The colour of the ocean appears to be blue because the sunlight falling on it is
A. Reflected
B. Refracted
C. Diffracted
D. Scattered
Mach number is used in connection with the speed of
A. sound
B. aircraft
C. spacecraft
D. ships
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