Physics - Study Mode

[#551] In Astrophysics, what name is given to a hypothetical hole in outer space from which stars and energy emerge?
Correct Answer

(D) White hole

Explanation

Solution: A White Hole is a hypothetical hole in outer space from which energy, stars, and other celestial matter emerge or explode. It is a theoretical celestial object into which matter is funneled from a black hole.

[#552] If there were no gravity, which of the following will not be there for a fluid?
Correct Answer

(D) Upward Thrust

Explanation

Solution: Archimedes' upward thrust will be absent for a fluid, if there were no gravity.

[#553] Number of lattices in the orthorhombic system is
Correct Answer

(C) 7

Explanation

Solution: Number of lattices in the orthorhombic system is 7.

[#554] The term ''Isoneph' indicates the lines of equal
Correct Answer

(A) Cloudiness

Explanation

Solution: An isoneph is a line indicating equal cloud cover or equal cloudiness. Variations in the degrees of slope, temperature, occurrence of rainfall, may be represented by drawing the lines of equal values on a map. All such maps are termed as Isopleth Map. The word Isopleth is derived from ‘Iso’ meaning equal and ‘pleth’ means lines. Thus, an imaginary line, which joins the places of equal values, is referred as Isopleth. The more frequently drawn isopleths include Isotherm (equal temperature), Isobar (equal pressure), Isohyets (equal rainfall), Isonephs (equal cloudiness), Isohels (equal sunshine), contours (equal heights), Isobaths (equal depths), Isohaline (equal salinity), etc.

[#555] 1 Joule is Equal to
Correct Answer

(C) 10^7 ergs

Explanation

Solution: 1 Joule is equal to 10^7 ergs.