6277 + Interview Questions in Physics Page 9 InterviewSolution

401.	Two constellations are seen in the sky having seven prominent stars in each; name the constellation which appears during winter?
Answer» Two constellations are seen in the sky having seven prominent stars in each; name the constellation which appears during winter?

Discussion

402.	Minimum numbers of 8 microfaradand 250 V capacitors used to make a combination of 16 microfarad and 1000 V will be?
Answer» Minimum numbers of 8 microfaradand 250 V capacitors used to make a combination of 16 microfarad and 1000 V will be?

Discussion

403.	Question 2 Draw the circuit diagram to represent the circuit shown in Fig:
Answer» Question 2 Draw the circuit diagram to represent the circuit shown in Fig:

Discussion

404.

A copper constantan thermocouple temperature measurement data with respect 0oC as Temperature 30 60 70 ... 200 220 230 Voltage (mV) 0.5 0.75 0.93 ... 9.7 10.2 11.0 The copper constantan thermcouple is connected to a potentiometer whose terminals are at 30oC, the potentiometer reads 9.7 mV then the open circuit temperature of the thermocouple at 0oC is220

Answer» A copper constantan thermocouple temperature measurement data with respect

0^{o} C

as

Temperature	$30$	$60$	$70$	$. . .$	$200$	$220$	$230$
Voltage $(m V)$	$0.5$	$0.75$	$0.93$	$. . .$	$9.7$	$10.2$	$11.0$

The copper constantan thermcouple is connected to a potentiometer whose terminals are at

30^{o} C,

the potentiometer reads

9.7 m V

then the open circuit temperature of the thermocouple at

0^{o} C

is

220

Discussion

405.	Question 8 (a)Name the type of mirror used in the given situation.Headlights of a carSupport your answer with reason.
Answer» Question 8 (a) Name the type of mirror used in the given situation. Headlights of a car Support your answer with reason.

Discussion

406.	Question 4The linear equation that converts Fahrenheit (F) to Celsius (C) if is given by the relation, C=5F−1609(i) If the temperature is 86∘F, what is the temperature in Celsius?(ii) If the temperature is 35∘C, what is the temperature in Fahrenheit?(iii) If the temperature is 0∘C, what is the temperature in Fahrenheit and if the temperature is 0∘F, what is the temperature in Celsius?(iv) What is the numerical value of the temperature which is same on both the scales?
Answer» Question 4 The linear equation that converts Fahrenheit (F) to Celsius (C) if is given by the relation, $C = \frac{5 F - 160}{9}$ (i) If the temperature is $86^{\circ}$ F, what is the temperature in Celsius? (ii) If the temperature is $35^{\circ}$ C, what is the temperature in Fahrenheit? (iii) If the temperature is $0^{\circ}$ C, what is the temperature in Fahrenheit and if the temperature is $0^{\circ}$ F, what is the temperature in Celsius? (iv) What is the numerical value of the temperature which is same on both the scales?

Discussion

407.	Why does the Pole Star seem to be stationary when seen from the Earth?
Answer» Why does the Pole Star seem to be stationary when seen from the Earth?

Discussion

408.	How do you measure static and sliding friction using spring balance? Explain in detail.
Answer» How do you measure static and sliding friction using spring balance? Explain in detail.

Discussion

409.	The initial level of water in a measuring cylinder was 12 ml. When an iron piece of irregular shape is completely immersed, the water level increased to 30 ml. What is the volume of the iron piece?
Answer» The initial level of water in a measuring cylinder was $12 ml$ . When an iron piece of irregular shape is completely immersed, the water level increased to $30 ml$ . What is the volume of the iron piece?

Discussion

410.	How to convert fahrenheit into Celsius.
Answer» How to convert fahrenheit into Celsius.

Discussion

411.	A man walk 50 m towards East, then 40 m towards North and then 20 m towards West. The magnitude of his displacement isOptions:40 m 50 m30 m110 m
Answer» A man walk 50 m towards East, then 40 m towards North and then 20 m towards West. The magnitude of his displacement is Options: 40 m 50 m 30 m 110 m

Discussion

412.	two spherical bodies of mass M and 5M and radii R & 2R are released in free space with initial separation b/w their centres equal to 12R. if they attract each other due to gravitational force then dis†an ce covered by smaller body before collison is
Answer» two spherical bodies of mass M and 5M and radii R & 2R are released in free space with initial separation b/w their centres equal to 12R. if they attract each other due to gravitational force then dis†an ce covered by smaller body before collison is

Discussion

413.	a man can swim with a speed of 4.0 km/h in still water.how long does he take to cross a river 1.0km wide if the river flows steadily at 3.0 km/h and he makes his stroke normal to the river current?how far does he go when he reaches the other bank
Answer» a man can swim with a speed of 4.0 km/h in still water.how long does he take to cross a river 1.0km wide if the river flows steadily at 3.0 km/h and he makes his stroke normal to the river current?how far does he go when he reaches the other bank

Discussion

414.	Name the type of the image that can be obtained on screen.
Answer» Name the type of the image that can be obtained on screen.

Discussion

415.	Question 1Write the coordinates of each of the points P, Q, R, S, T and O from the figure.Thinking process(i) Firstly, draw the perpendicular lines from the point to the coordinates axes.(ii) Further, measure the distance from intersecting points to the origin along with their sign.(iii) Finally, write the x unit distance and y unit distance in a pair.
Answer» Question 1 Write the coordinates of each of the points P, Q, R, S, T and O from the figure. Thinking process (i) Firstly, draw the perpendicular lines from the point to the coordinates axes. (ii) Further, measure the distance from intersecting points to the origin along with their sign. (iii) Finally, write the x unit distance and y unit distance in a pair.

Discussion

416.	Explain an example where heat is transferred by all three means
Answer» Explain an example where heat is transferred by all three means

Discussion

417.	Question 18 Distance-time graph of an object is given below. (i) What will be the position of the object at 20s? (ii) What will be the distance traveled by the object in 12s? (iii) What is the average speed of the object?
Answer» Question 18 Distance-time graph of an object is given below. (i) What will be the position of the object at 20s? (ii) What will be the distance traveled by the object in 12s? (iii) What is the average speed of the object?

417.

Question 18 Distance-time graph of an object is given below. (i) What will be the position of the object at 20s? (ii) What will be the distance traveled by the object in 12s? (iii) What is the average speed of the object?

Answer»

Question 18

Distance-time graph of an object is given below.

(i) What will be the position of the object at 20s?
(ii) What will be the distance traveled by the object in 12s?
(iii) What is the average speed of the object?

Discussion

418.	A bullet is fired from a gun. Assuming that the gunrecoils freely, the kinetic energy of the bullet is(1) Less than kinetic energy of the gun(2) Equal to kinetic energy of the gun(3) More than kinetic energy of the gun4) Equal to or less than kinetic energy of the gun
Answer» A bullet is fired from a gun. Assuming that the gunrecoils freely, the kinetic energy of the bullet is(1) Less than kinetic energy of the gun(2) Equal to kinetic energy of the gun(3) More than kinetic energy of the gun4) Equal to or less than kinetic energy of the gun

Discussion

419.	Which of the following mirrors is used to concentrate the light on a given spot?
Answer» Which of the following mirrors is used to concentrate the light on a given spot?

Discussion

420.	You can see the given images by using a sense of _________.
Answer» You can see the given images by using a sense of _________.

Discussion

421.	Two bodies at different temperatures T1 and T2 if brought in thermal contact do not necessarily settle to the mean temperature (T1 + T2)/2. Why.
Answer» Two bodies at different temperatures T1 and T2 if brought in thermal contact do not necessarily settle to the mean temperature (T1 + T2)/2. Why.

Discussion

422.	Mention the precautions taken during the handling of a clinical thermometer.
Answer» Mention the precautions taken during the handling of a clinical thermometer.

Discussion

423.	For the following devices:I: FuseII: Electric BulbIII: Electric BellSelect the correct option.
Answer» For the following devices: I: Fuse II: Electric Bulb III: Electric Bell Select the correct option.

423.

For the following devices:I: FuseII: Electric BulbIII: Electric BellSelect the correct option.

Answer»

For the following devices:

I: Fuse

II: Electric Bulb

III: Electric Bell

Select the correct option.

Discussion

424.	Question 5The capacity of a cuboidal tank is 50000 litres of water. Find the breadth of the tank, if its length and depth are respectively 2.5 m and 10 m.
Answer» Question 5 The capacity of a cuboidal tank is 50000 litres of water. Find the breadth of the tank, if its length and depth are respectively 2.5 m and 10 m.

Discussion

425.	Choose the correct direction of net air flow after opening the valve. (V = Volume P = Pressure)
Answer» Choose the correct direction of net air flow after opening the valve. (V = Volume P = Pressure)

Discussion

426.	Variation of atmospheric pressure, with height from earth is
Answer» Variation of atmospheric pressure, with height from earth is

Discussion

427.	Question 33How will you conclude that the same potential difference (voltage) exists across three resistors connected in a parallel arrangement to a battery?
Answer» Question 33 How will you conclude that the same potential difference (voltage) exists across three resistors connected in a parallel arrangement to a battery?

Discussion

428.	What is the formula to find the area of a circle?
Answer» What is the formula to find the area of a circle?

Discussion

429.	A body travels 200 cm in the first two seconds and 220 cm in the next four seconds. The average speed of the body for the entire journey is .
Answer» A body travels 200 cm in the first two seconds and 220 cm in the next four seconds. The average speed of the body for the entire journey is .

Discussion

430.	Question 4 Following are precautions one must take in case a storm is accompanied by lightning (i) Do not take shelter under a tree (ii) Do not take shelter under an umbrella with a metallic end (iii) Do not take shelter in open garages, storage sheds, etc. (iv) Do not take shelter in a bus in the open. Which one of these is not correct?
Answer» Question 4 Following are precautions one must take in case a storm is accompanied by lightning (i) Do not take shelter under a tree (ii) Do not take shelter under an umbrella with a metallic end (iii) Do not take shelter in open garages, storage sheds, etc. (iv) Do not take shelter in a bus in the open. Which one of these is not correct?

430.

Question 4 Following are precautions one must take in case a storm is accompanied by lightning (i) Do not take shelter under a tree (ii) Do not take shelter under an umbrella with a metallic end (iii) Do not take shelter in open garages, storage sheds, etc. (iv) Do not take shelter in a bus in the open. Which one of these is not correct?

Answer»

Question 4

Following are precautions one must take in case a storm is accompanied by lightning
(i) Do not take shelter under a tree
(ii) Do not take shelter under an umbrella with a metallic end
(iii) Do not take shelter in open garages, storage sheds, etc.
(iv) Do not take shelter in a bus in the open.

Which one of these is not correct?

Discussion

431.	A rubber sucker, when pressed on a surface sticks to it, because:
Answer» A rubber sucker, when pressed on a surface sticks to it, because:

Discussion

432.	why is lithium used in batteries?
Answer» why is lithium used in batteries?

Discussion

433.	A ball is projected in a manner such that its horizontal range is n times of the maximum height.then find out the ratio of potential energy to kinetic energy at maximum height.
Answer» A ball is projected in a manner such that its horizontal range is n times of the maximum height. then find out the ratio of potential energy to kinetic energy at maximum height.

Discussion

434.	Question 12Boojho made the circuit given in Fig. and observed that the bulb did not glow. On Paheli’s suggestion, he added one more cell in the circuit. The bulb now glows. Explain.
Answer» Question 12 Boojho made the circuit given in Fig. and observed that the bulb did not glow. On Paheli’s suggestion, he added one more cell in the circuit. The bulb now glows. Explain.

Discussion

435.	Question 2 (i) Which of the following are not correct? (i) The basic unit of time is second.
Answer» Question 2 (i) Which of the following are not correct? (i) The basic unit of time is second.

Discussion

436.	(a) What do the following activities suggest?Activity 1: flying of kitesActivity 2: the rustling of leaves of the trees.Activity 3: sailing of parachutes.(b) The blanket of air that surrounds the Earth is known as _______.(c) What is another name of wind?
Answer» (a) What do the following activities suggest? Activity 1: flying of kites Activity 2: the rustling of leaves of the trees. Activity 3: sailing of parachutes. (b) The blanket of air that surrounds the Earth is known as _______. (c) What is another name of wind?

436.

(a) What do the following activities suggest?Activity 1: flying of kitesActivity 2: the rustling of leaves of the trees.Activity 3: sailing of parachutes.(b) The blanket of air that surrounds the Earth is known as _______.(c) What is another name of wind?

Answer»

(a) What do the following activities suggest?

Activity 1: flying of kites

Activity 2: the rustling of leaves of the trees.

Activity 3: sailing of parachutes.

(b) The blanket of air that surrounds the Earth is known as _______.

(c) What is another name of wind?

Discussion

437.	Draw a diagram to show the wave pattern of a high pitch note and a low pitch note, but of the same loudness.
Answer» Draw a diagram to show the wave pattern of a high pitch note and a low pitch note, but of the same loudness.

Discussion

438.	A man 180cm high stands in front of a plane mirror. His eyes and at the height of 172cm from the floor. Then to see his full image for minimum length of mirror, the lower end of the mirror should be placed at a height of A)86 cm from the floorB) 94cm from the floorC) 4cm from the floorD) 8 cm from the floor
Answer» A man 180cm high stands in front of a plane mirror. His eyes and at the height of 172cm from the floor. Then to see his full image for minimum length of mirror, the lower end of the mirror should be placed at a height of A)86 cm from the floor B) 94cm from the floor C) 4cm from the floor D) 8 cm from the floor

Discussion

439.	A motorcyclist drives from place A to B with a uniform speed of 30 km h−1 and returns from place B to A with a uniform speed of 20 km h−1. Find his average speed.
Answer» A motorcyclist drives from place $A$ to $B$ with a uniform speed of $30 k m h - 1$ and returns from place $B$ to $A$ with a uniform speed of $20 k m h^{- 1}$ . Find his average speed.

Discussion

440.	The fundamental quantities are :
Answer» The fundamental quantities are :

Discussion

441.	In a case of one dimensional heat conduction in a medium with constant properties, T is the temperature at position x, at time t. Then ∂T∂t is proportional to
Answer» In a case of one dimensional heat conduction in a medium with constant properties, T is the temperature at position x, at time t. Then $\frac{\partial T}{\partial t}$ is proportional to

Discussion

442.	Why does a thick glass tumbler sometimes crack when we pour very hot tea into it?
Answer» Why does a thick glass tumbler sometimes crack when we pour very hot tea into it?

Discussion

443.	(i) How far would a point be from a +0.60 microcoulomb charge if it had a value of electric potential equal to 10 kV ? (ii) If the point were moved to four times of its initial distance from the charge then what potential change would occur ? Is it an increase or a decrease ?
Answer» (i) How far would a point be from a +0.60 microcoulomb charge if it had a value of electric potential equal to 10 kV ? (ii) If the point were moved to four times of its initial distance from the charge then what potential change would occur ? Is it an increase or a decrease ?

Discussion

444.	Which statement among the following is true if car A has more speed than car B?
Answer» Which statement among the following is true if car A has more speed than car B?

Discussion

445.	What effect can be created by a low pressure region?
Answer» What effect can be created by a low pressure region?

Discussion

446.	7. A body is moving wth uniform retardation covers 3km before its speed is reduced to half of its initial value. It comes to rest in another distance of
Answer» 7. A body is moving wth uniform retardation covers 3km before its speed is reduced to half of its initial value. It comes to rest in another distance of

Discussion

447.	a ring of radius R and mass M is rolling on a smooth horizontal surface with speed v.the kinetic energy of the ring is
Answer» a ring of radius R and mass M is rolling on a smooth horizontal surface with speed v.the kinetic energy of the ring is

Discussion

448.	What do you mean by the word paramagnetic in chemistry?
Answer» What do you mean by the word paramagnetic in chemistry?

Discussion

449.	A person moves 30 m north, then 20 m east and then 30\sqrt{2 } m south-west . His displacement from the origin position
Answer» A person moves 30 m north, then 20 m east and then 30\sqrt{2 } m south-west . His displacement from the origin position

Discussion

450.	A very thin metallic shell of radius r isvheatedvto temp. T and then allowed to cool.The rate of cooling of shell is proportional to 1)rT 2)1/r 3)rr 4)r^°
Answer» A very thin metallic shell of radius r isvheatedvto temp. T and then allowed to cool.The rate of cooling of shell is proportional to 1)rT 2)1/r 3)rr 4)r^°

Discussion

Explore topic-wise InterviewSolutions in .

Two constellations are seen in the sky having seven prominent stars in each; name the constellation which appears during winter?

Minimum numbers of 8 microfaradand 250 V capacitors used to make a combination of 16 microfarad and 1000 V will be?

Question 2 Draw the circuit diagram to represent the circuit shown in Fig:

Question 8 (a)Name the type of mirror used in the given situation.Headlights of a carSupport your answer with reason.

Why does the Pole Star seem to be stationary when seen from the Earth?

How do you measure static and sliding friction using spring balance? Explain in detail.

The initial level of water in a measuring cylinder was 12 ml. When an iron piece of irregular shape is completely immersed, the water level increased to 30 ml. What is the volume of the iron piece?

How to convert fahrenheit into Celsius.

A man walk 50 m towards East, then 40 m towards North and then 20 m towards West. The magnitude of his displacement isOptions:40 m 50 m30 m110 m

two spherical bodies of mass M and 5M and radii R & 2R are released in free space with initial separation b/w their centres equal to 12R. if they attract each other due to gravitational force then dis†an ce covered by smaller body before collison is

a man can swim with a speed of 4.0 km/h in still water.how long does he take to cross a river 1.0km wide if the river flows steadily at 3.0 km/h and he makes his stroke normal to the river current?how far does he go when he reaches the other bank

Name the type of the image that can be obtained on screen.

Explain an example where heat is transferred by all three means

Question 18 Distance-time graph of an object is given below. (i) What will be the position of the object at 20s? (ii) What will be the distance traveled by the object in 12s? (iii) What is the average speed of the object?

A bullet is fired from a gun. Assuming that the gunrecoils freely, the kinetic energy of the bullet is(1) Less than kinetic energy of the gun(2) Equal to kinetic energy of the gun(3) More than kinetic energy of the gun4) Equal to or less than kinetic energy of the gun

Which of the following mirrors is used to concentrate the light on a given spot?

You can see the given images by using a sense of _________.

Two bodies at different temperatures T1 and T2 if brought in thermal contact do not necessarily settle to the mean temperature (T1 + T2)/2. Why.

Mention the precautions taken during the handling of a clinical thermometer.

For the following devices:I: FuseII: Electric BulbIII: Electric BellSelect the correct option.

Question 5The capacity of a cuboidal tank is 50000 litres of water. Find the breadth of the tank, if its length and depth are respectively 2.5 m and 10 m.

Choose the correct direction of net air flow after opening the valve. (V = Volume P = Pressure)

Variation of atmospheric pressure, with height from earth is

Question 33How will you conclude that the same potential difference (voltage) exists across three resistors connected in a parallel arrangement to a battery?

What is the formula to find the area of a circle?

A body travels 200 cm in the first two seconds and 220 cm in the next four seconds. The average speed of the body for the entire journey is .

A rubber sucker, when pressed on a surface sticks to it, because:

why is lithium used in batteries?

A ball is projected in a manner such that its horizontal range is n times of the maximum height.then find out the ratio of potential energy to kinetic energy at maximum height.

Question 12Boojho made the circuit given in Fig. and observed that the bulb did not glow. On Paheli’s suggestion, he added one more cell in the circuit. The bulb now glows. Explain.

Question 2 (i) Which of the following are not correct? (i) The basic unit of time is second.

(a) What do the following activities suggest?Activity 1: flying of kitesActivity 2: the rustling of leaves of the trees.Activity 3: sailing of parachutes.(b) The blanket of air that surrounds the Earth is known as _______.(c) What is another name of wind?

Draw a diagram to show the wave pattern of a high pitch note and a low pitch note, but of the same loudness.

A motorcyclist drives from place A to B with a uniform speed of 30 km h−1 and returns from place B to A with a uniform speed of 20 km h−1. Find his average speed.

The fundamental quantities are :

In a case of one dimensional heat conduction in a medium with constant properties, T is the temperature at position x, at time t. Then ∂T∂t is proportional to

Why does a thick glass tumbler sometimes crack when we pour very hot tea into it?

(i) How far would a point be from a +0.60 microcoulomb charge if it had a value of electric potential equal to 10 kV ? (ii) If the point were moved to four times of its initial distance from the charge then what potential change would occur ? Is it an increase or a decrease ?

Which statement among the following is true if car A has more speed than car B?

What effect can be created by a low pressure region?

7. A body is moving wth uniform retardation covers 3km before its speed is reduced to half of its initial value. It comes to rest in another distance of

a ring of radius R and mass M is rolling on a smooth horizontal surface with speed v.the kinetic energy of the ring is

What do you mean by the word paramagnetic in chemistry?

A person moves 30 m north, then 20 m east and then 30\sqrt{2 } m south-west . His displacement from the origin position

A very thin metallic shell of radius r isvheatedvto temp. T and then allowed to cool.The rate of cooling of shell is proportional to 1)rT 2)1/r 3)rr 4)r^°