Answer : The correct option is, (D) 278 K
Explanation :
We are given temperature
.
Now the conversion factor used for the temperature is,

where, K is kelvin and
is Celsius.
Now put the value of temperature, we get

Therefore, the temperature 278 K is equal to the 
<span>C) It does not change. At the point where the phase of a substance changes, there is no temperature change but only the phase change. After this, the temperature then goes up or down depending on the type of phase change occurring. </span>
Answer:
option E
Explanation:
given,
Parallax angle(d) = 1 arcsecond
using Parallax formula

p is the parsecs angle which is measured in 1 arcsecond
d is the distance in parsec
now,



we know,
1 parsec = 3.26 light year
hence, the answer will be option E