6277 + Interview Questions in Physics Page 126 InterviewSolution

6251.	Why is a magnetic needle used in the tester made to test mostly weak conductors? [3 MARKS]
Answer» Why is a magnetic needle used in the tester made to test mostly weak conductors? [3 MARKS]

6251.

Why is a magnetic needle used in the tester made to test mostly weak conductors? [3 MARKS]

Answer»

Why is a magnetic needle used in the tester made to test mostly weak conductors? [3 MARKS]

6252.	In a golf tournament, if we designate the hole as the origin, and the putter (like a bat) is at - 5.0 m at time 0s, (as shown in the figure), what will be the average velocity of the ball when it reaches the hole ?
Answer» In a golf tournament, if we designate the hole as the origin, and the putter (like a bat) is at - 5.0 m at time 0s, (as shown in the figure), what will be the average velocity of the ball when it reaches the hole ?

Discussion

6253.	The metal caesium has a low melting point. It means that it'll melt if you keep it in your palm. What happens to its molecules with regard to the energy when the temperature increases?
Answer» The metal caesium has a low melting point. It means that it'll melt if you keep it in your palm. What happens to its molecules with regard to the energy when the temperature increases?

Discussion

6254.	What are the aims of watershed management?
Answer» What are the aims of watershed management?

Discussion

6255.	Sir, what is radiation means? (briefly about it)?
Answer» Sir, what is radiation means? (briefly about it)?

Discussion

6256.	What is the cause of lateral inversion in mirror?
Answer» What is the cause of lateral inversion in mirror?

Discussion

6257.	How does Earth recieve most of its heat? [3 MARKS]
Answer» How does Earth recieve most of its heat? [3 MARKS]

Discussion

6258.	Large volumes of CNG can be filled in small cylinders easily due to which property of gases?
Answer» Large volumes of CNG can be filled in small cylinders easily due to which property of gases?

Discussion

6259.	In 1731 Amrita devi Bishnoi sacrifised her life along with 363 others for the protection of khejri trees. What was achieved by that revolutionary act?
Answer» In 1731 Amrita devi Bishnoi sacrifised her life along with 363 others for the protection of khejri trees. What was achieved by that revolutionary act?

Discussion

6260.	We can see objects when the light is reflected from the objects and it falls upon our eyes. Why can't walls act as a mirror since even walls reflect light which falls on our eyes? [3 MARKS]
Answer» We can see objects when the light is reflected from the objects and it falls upon our eyes. Why can't walls act as a mirror since even walls reflect light which falls on our eyes? [3 MARKS]

Discussion

6261.	The amount of matter in unit volume of the substance is its _______.
Answer» The amount of matter in unit volume of the substance is its _______.

Discussion

6262.	Write down the densities of silver, mercury, uranium, gold and water?
Answer» Write down the densities of silver, mercury, uranium, gold and water?

Discussion

6263.	Which of the following metals are magnetic in nature?
Answer» Which of the following metals are magnetic in nature?

Discussion

6264.	What is the SI unit of energy?
Answer» What is the SI unit of energy?

Discussion

6265.	Even though firemen suit is made of plastic it doesn't catch fire? why
Answer» Even though firemen suit is made of plastic it doesn't catch fire? why

Discussion

6266.	If the force constant of a wire is k, the work done in increasing the length L of the wire by l is
Answer» If the force constant of a wire is $k$ , the work done in increasing the length $L$ of the wire by $l$ is

Discussion

6267.	1 m s−1 =______ kmph.
Answer» $1 m s^{- 1}$ =______ kmph.

Discussion

6268.	Which of the following statement(s) about motion is/are true? Statement 1: Motion of an object is relative to the position of another object. Statement 2: Change in state of motion of an object is the result of an external force. Statement 3: Motion of an object is change of position of the object with respect to time.
Answer» Which of the following statement(s) about motion is/are true? Statement 1: Motion of an object is relative to the position of another object. Statement 2: Change in state of motion of an object is the result of an external force. Statement 3: Motion of an object is change of position of the object with respect to time.

Discussion

6269.	___ is the measurement or extent of an object from end to end.
Answer» ___ is the measurement or extent of an object from end to end.

Discussion

6270.	Two cylindrical rods of lengths l1 and l2, radii r1 and r2 have thermal conductivities k1 and k2 respectively. The ends of the rods are maintained at the same temperature difference. If l1=2l2 and r1=r22, the rates of heat flow in them will be the same if k1k2 is
Answer» Two cylindrical rods of lengths $l_{1}$ and $l_{2}$ , radii $r_{1}$ and $r_{2}$ have thermal conductivities $k_{1}$ and $k_{2}$ respectively. The ends of the rods are maintained at the same temperature difference. If $l_{1} = 2 l_{2}$ and $r_{1} = \frac{r_{2}}{2}$ , the rates of heat flow in them will be the same if $\frac{k_{1}}{k_{2}}$ is

Discussion

6271.	When can you say an object is a magnet?
Answer» When can you say an object is a magnet?

Discussion

6272.	Which of the following mirror(s) is/are used as a rear view mirror?
Answer» Which of the following mirror(s) is/are used as a rear view mirror?

Discussion

6273.	Match the water harvesting techniques to the corresponding place. coloumn1coloumn2(1)Talsa)Tamilnadu(2)Erisb)Maharashtra(3)Kattasc)Bihar(4)Aharsd)Karnataka
Answer» Match the water harvesting techniques to the corresponding place. $\begin{matrix} c o l o u m n 1 & c o l o u m n 2 (1) T a l s & a) T a m i l n a d u (2) E r i s & b) M a h a r a s h t r a (3) K a t t a s & c) B i h a r (4) A h a r s & d) K a r n a t a k a \end{matrix}$

6273.

Match the water harvesting techniques to the corresponding place. coloumn1coloumn2(1)Talsa)Tamilnadu(2)Erisb)Maharashtra(3)Kattasc)Bihar(4)Aharsd)Karnataka

Answer»

Match the water harvesting techniques to the corresponding place.

$\begin{matrix} c o l o u m n 1 & c o l o u m n 2 (1) T a l s & a) T a m i l n a d u (2) E r i s & b) M a h a r a s h t r a (3) K a t t a s & c) B i h a r (4) A h a r s & d) K a r n a t a k a \end{matrix}$

Discussion

Explore topic-wise InterviewSolutions in .

Why is a magnetic needle used in the tester made to test mostly weak conductors? [3 MARKS]

In a golf tournament, if we designate the hole as the origin, and the putter (like a bat) is at - 5.0 m at time 0s, (as shown in the figure), what will be the average velocity of the ball when it reaches the hole ?

The metal caesium has a low melting point. It means that it'll melt if you keep it in your palm. What happens to its molecules with regard to the energy when the temperature increases?

What are the aims of watershed management?

Sir, what is radiation means? (briefly about it)?

What is the cause of lateral inversion in mirror?

How does Earth recieve most of its heat? [3 MARKS]

Large volumes of CNG can be filled in small cylinders easily due to which property of gases?

In 1731 Amrita devi Bishnoi sacrifised her life along with 363 others for the protection of khejri trees. What was achieved by that revolutionary act?

We can see objects when the light is reflected from the objects and it falls upon our eyes. Why can't walls act as a mirror since even walls reflect light which falls on our eyes? [3 MARKS]

The amount of matter in unit volume of the substance is its _______.

Write down the densities of silver, mercury, uranium, gold and water?

Which of the following metals are magnetic in nature?

What is the SI unit of energy?

Even though firemen suit is made of plastic it doesn't catch fire? why

If the force constant of a wire is k, the work done in increasing the length L of the wire by l is

1 m s−1 =______ kmph.

___ is the measurement or extent of an object from end to end.

Two cylindrical rods of lengths l1 and l2, radii r1 and r2 have thermal conductivities k1 and k2 respectively. The ends of the rods are maintained at the same temperature difference. If l1=2l2 and r1=r22, the rates of heat flow in them will be the same if k1k2 is

When can you say an object is a magnet?

Which of the following mirror(s) is/are used as a rear view mirror?

Match the water harvesting techniques to the corresponding place. coloumn1coloumn2(1)Talsa)Tamilnadu(2)Erisb)Maharashtra(3)Kattasc)Bihar(4)Aharsd)Karnataka