Which of the following is the best thermal insulator apex
Asked by maham237 @ in Physics viewed by 434 People
A.Air
B. Aluminum
C.Iron
D.Water
Answered by maham237 @
Answer:
A. Air
Explanation:
A thermal insulator is a material that does not let the heat trasmitting through it, or it transmits heat not very efficiently.
Generally, the lower the density of the material, the better insulator the material is: this is because in materials with very low density, particles are very spread apart, so they cannot collide with each other, and so the vibrations of the particles (which determine how hot a substance is) cannot be transmitted very efficiently.
In the options listed in this problem, air is the material with lowest density, therefore it is the best thermal insulator among them.
Similar Questions
Which of the following is likely the best electrical insulator
Asked by maham237 @ in Biology viewed by 307 persons
carbon silicon aluminum oxygen
Which of the following would be the best electrical insulator
Asked by maham237 @ in Physics viewed by 358 persons
A. copper
B. silver
C. salt water
D. wood
Which of the following is likely the best electrical insulator? carbon silicon aluminum oxygen
Asked by maham237 @ in Biology viewed by 356 persons
Which of the following is not an insulator
Asked by admin @ in English viewed by 295 persons
Which of the following is not an insulator ?
A) fur B) rubber c) plastic d) metal
Which one of the following is not an insulator
Asked by admin @ in Physics viewed by 288 persons
Which of the following is not an insulatori)bricksii)brassiii)bamboo
Out of the following which is an insulating material
Asked by admin @ in Physics viewed by 291 persons
Q.4 Out of the following which is an insulating material? (a) Copper (b) Gold (c) Silver (d) Glass
Which of the following insulation is used in cables
Asked by admin @ in CBSE BOARD XII viewed by 311 persons
36.
Which of the following insulation is used in cables?(a) Varnished cambric(b) Rubber(c) Paper(d) All of these
Which of the following best replaces the question mark
Asked by admin @ in Math viewed by 392 persons
Which of the following best replaces the question mark?
?61230356a. 8b. 7C. 6d. 5
Which of the following is best known service model
Asked by admin @ in English viewed by 395 persons
4.
Which of the following is best known service model?(a) SaaS(b) laas(c) Paas(d) All of the above
Which of the following is best used for penetration testing
Asked by admin @ in English viewed by 388 persons
Which of the following is best used for vulnerability assessment
Which of the following statements is best about inventory management
Asked by maham237 @ in Business viewed by 378 persons
a. A periodic inventory system computes cost of goods sold each time a sale occurs.
b. A perpetual inventory system computes cost of goods sold only at the end of …
Which of the following best states the purpose of advertising
Asked by maham237 @ in History viewed by 468 persons
A. To generate positive news stories about a good or service.
B. To provide consumers with accurate product information.
C. To get consumers to demand more goods and services.
D. …
Which is the best evaluation of the source's credibility apex
Asked by maham237 @ in English viewed by 332 persons
Which of the following statements is true about points apex
Asked by maham237 @ in Mathematics viewed by 264 persons
A. They have no width, no height, and no length.
B. They vary in size, depending on how they are used.
C. They have no volume but a very small …
Match each of the following words with its best antonym
Asked by maham237 @ in English viewed by 339 persons
Most viewed questions in Physics
Jeevandeep health and physical education std 10 answers pdf
Asked by admin @ in Physics viewed by 11074 persons
Hc verma physics class 9 solutions of describing motion
Asked by admin @ in Physics viewed by 2672 persons
Base area and stability of some objects with different shapes
Asked by admin @ in Physics viewed by 1533 persons
Which of the following statements about safe lifting are correct
Asked by admin @ in Physics viewed by 1518 persons
A rocket of mass m is launched straight up with thrust f⃗ thrust.
Asked by maham237 @ in Physics viewed by 1317 persons
A hair dryer with a resistance of 9.6 ohms operates at 120 volts for 2.5 minutes. the total electrical energy used by the dryer during this time interval is
Asked by maham237 @ in Physics viewed by 1206 persons
Mind map for light reflection and refraction class 10
Asked by admin @ in Physics viewed by 1148 persons
The african cicada is the world's loudest insect, producing a sound intensity level of 107 db at a distance of 0.50 m. what is the intensity of its sound (in w/m2) as heard by someone standing 3.1 m away? express your answer in watts per meter squared.
Asked by maham237 @ in Physics viewed by 1101 persons
A 5.8 x 10 4 watt elevator motor can lift
Asked by maham237 @ in Physics viewed by 1082 persons