Question

TIME:2:45Hurs
MARKS: 50
SECTION -I
Note: Answer all the questions
12x% = 6
Each Questions carries 1/2 mark
How much heat energy is required to rise the temperature of unit mass of
substance by 1°C?
2. write the relation between temperature and kinetic energy?
3. write second law of refraction
Assertion(A): The speed of light in water is greater than that of benzene.
Reason(R): The speed of light in a medium is high when refractive index of the
medium is low?
Which of the following is correct?
AT A and R are true and R supports A
B) A and R are true but R does not support A
C A is true but R is false
D) A is false but R is true
5.
What happens to the eye of a person when it loses it ability for accommodation?​

Answer 1

Answer:

(1)The specific heat represents the amount of energy required to raise 1 kg of substance by 1oC (or 1 K), and can be thought of as the ability to absorb heat.

(2)Temperature is directly proportional to the average translational kinetic energy of molecules in an ideal gas.

(3)A and R are true but R does not support A

(4) When humans accommodate to a near object, they also converge their eyes and, as a result, constrict their pupils. However, the constriction of the pupils is not part of the process called lens accommodation.

Explanation:

That's it ,

Thank you.