The radio lobes that are on each side of some radio galaxies and jets from them produce mainly

a. 21-cm radiation.
b. synchrotron radiation.
c. black body radiation.
d. emission lies due to hydrogen.
e. absorption lines due to hydrogen.


b

Physics & Space Science

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The Sun is what spectral type?

a. S2 b. G2 c. F2 d. K2 e. ST2 (Spectral Type 2)

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In projectile motion the velocity at the top of the trajectory is

A. zero B. non-zero, since the x component of the velocity has remained constant. C. larger than at any other time during the trajectory.

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There are daily variations in the barometric pressure, which occur because of tidal effects

Indicate whether the statement is true or false

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Which of the above images best depicts a water solution of a weak acid (represented by HA)?

A) A B) B C) C D) All of the above are weak acids. E) None of the above are weak acids.

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