Physics Practice Question and Answer
8 Q: Which set of conditions represents the easiest way to liquefy agas?
1420 05f2cddb7be9f31290fb7cb5c
5f2cddb7be9f31290fb7cb5c- 1Low temperature and low pressurefalse
- 2High temperature and high pressurefalse
- 3Low temperature and high pressuretrue
- 4High temperature and low pressurefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Low temperature and high pressure "
Q: What type of current is obtained from dynamo?
1415 05fe45b9a00c5087b4d132da3
5fe45b9a00c5087b4d132da3- 1Direct Sectiontrue
- 2alternating currentfalse
- 3both streamsfalse
- 4None of thesefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Direct Section"
Q: What is the nature of real reflection?
1413 05f6da372f9079a64e3c04432
5f6da372f9079a64e3c04432- 1Reversetrue
- 2straightfalse
- 3upright and upside downfalse
- 4None of thesefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Reverse"
Q: Who is considered as the ultimate source of all forms of energy?
1413 060b4b23cc6545e407514f717
60b4b23cc6545e407514f717- 1Coalfalse
- 2Atomfalse
- 3Waterfalse
- 4Suntrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "Sun"
Q: When ray of light goes from denser to rarer medium then it –
1404 06062c4df9cf7d827dcdcfcd2
6062c4df9cf7d827dcdcfcd2- 1Bends towards the normalfalse
- 2Bends away from the normaltrue
- 3Goes Straightfalse
- 4Reflected backfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "Bends away from the normal "
Q: Which of the following elements has the largest atomic radii?
1401 06419aed45bff3d098df69c79
6419aed45bff3d098df69c79- 1Berylliumfalse
- 2Lithiumtrue
- 3Nitrogenfalse
- 4Carbonfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "Lithium"
Explanation :
Francium (Fr) has the highest atomic radius in the periodic table. It belongs to the alkali metals group. Its atomic number is 87. The periodic trend of atomic radius suggests that the atomic radius usually decreases along a period (left to right) and increases down a group (top to bottom).
Q: The amount of work done in moving a charge of 4C across two points having a potential difference of 6V is ______.
1395 0641974a1b34a0b67fcf4a8bf
641974a1b34a0b67fcf4a8bf- 148 Jfalse
- 212 Jfalse
- 336 Jfalse
- 424 Jtrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "24 J"
Q: The sum of the change in kinetic and potential energy is always-
1391 0608929c2fd171c780883f502
608929c2fd171c780883f502- 1Zerotrue
- 2Positivefalse
- 3Negativefalse
- 4None of the abovefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice