ii. Which statement is not true about Newland's
octave?
A) The elements were arranged according to
their atomic mass.
B) It worked well with light element.
C) It relates the property of element to their
atomic number.
D) The eighth element was a repetition of
the first.
Answers
Explanation:
. A beggar wrapped himself with a few layers of newspaper on a cold winter night. This helped him to keep himself warm because
[A]. Friction between the layers of newspaper produces heat.
[B]. Air trapped between the layers of newspaper is a bad conductor of heat.
[C]. Newspaper is a conductor of heat.
[D]. Newspaper is at a higher temperature then the temperature of the surroundings.
2. Which of the following statement is incorrect?
[A]. Joule (J) is the SI unit of Temperature.
[B]. Air, water and wood are the poor conductor of heat.
[C]. Movement of molecule of liquid possible through convection.
[D]. None of the above.
3. An Iron ball at 40 Degree Celsius is dropped in a mug containing water at 40 Degree Celsius. The heat will
[A]. Flow from iron ball to water
[B]. Not flow from iron ball to water or from water to iron ball
[C]. Flow from water to iron ball
[D]. Increase the temperature of both
4. Convection may occur through
[A]. Solids, liquids
[B]. Liquids, gases
[C]. Solids, gases
[D]. Solids, liquids, gases
5. Once in a summer day, Pratima keeps an Iron chair in sunlight. After few hours, iron chair gets heated because
[A]. Heat is transferred by conduction
[B]. Heat is transferred by convection
[C]. Heat is transferred by radiation
[D]. Heat is transferred by all the process