3752 + Interview Questions in Physics Page 12 InterviewSolution

551.	What does the line, ‘Therefore are we wreathing a flowery band to bind us to earth’ suggest to you?
Answer» What does the line, ‘Therefore are we wreathing a flowery band to bind us to earth’ suggest to you?

Discussion

552.	97. If time for 50 oscillation of Pendulum is 80 sec using a wristwatch of 1 second resolution then accuracy in measurement of time period of oscillation is 1) 1.25% 2) 2.5% 3) 5% 4) 10%
Answer» 97. If time for 50 oscillation of Pendulum is 80 sec using a wristwatch of 1 second resolution then accuracy in measurement of time period of oscillation is 1) 1.25% 2) 2.5% 3) 5% 4) 10%

Discussion

553.	two long current carrying thin wires , both with current I are held by insulating threads of length L and are in equilibrium with threads making an angle theta with the vertical . if the wires have mass M per unit length then value of I is?
Answer» two long current carrying thin wires , both with current I are held by insulating threads of length L and are in equilibrium with threads making an angle theta with the vertical . if the wires have mass M per unit length then value of I is?

Discussion

554.	A cyclist moves with a speed of 45 km/hr. How much distance will he cover in 212 hrs?
Answer» A cyclist moves with a speed of $\frac{4}{5}$ km/hr. How much distance will he cover in $2 \frac{1}{2}$ hrs?

Discussion

555.	What is the relation between the distance of a body from a point and its motion?
Answer» What is the relation between the distance of a body from a point and its motion?

Discussion

556.	6.In the adjoining figure is shown a closed path P.A long straight conductor carrying current I passes through O and perpendicular to the plane of paper.Then which of the following holds good?
Answer» 6.In the adjoining figure is shown a closed path P.A long straight conductor carrying current I passes through O and perpendicular to the plane of paper.Then which of the following holds good?

Discussion

557.	With respect to OCTAHEDRAL Voids 1. Discuss its LOCATION2. Discuss its FORMATION3. DERIVE the RADIUS of the Void
Answer» With respect to OCTAHEDRAL Voids 1. Discuss its LOCATION 2. Discuss its FORMATION 3. DERIVE the RADIUS of the Void

Discussion

558.	In which year did we start using metric measures in India?
Answer» In which year did we start using metric measures in India?

Discussion

559.	The given images depict ________ objects. Answer using the given characters.
Answer» The given images depict ________ objects. Answer using the given characters.

Discussion

560.	8. Two identical bar magnet each of magnetic moment M are placed as shown in figure. magnetic field at point P is.
Answer» 8. Two identical bar magnet each of magnetic moment M are placed as shown in figure. magnetic field at point P is.

Discussion

561.	What are magnetic and non-magnetic materials? Explain and categorise the given substances into two groups-magnetic and non-magnetic.Keys, Glass, Wood, Nail, Book, Rubber, Fork, Sand, Iron particles, Chalk, Alpin
Answer» What are magnetic and non-magnetic materials? Explain and categorise the given substances into two groups-magnetic and non-magnetic. Keys, Glass, Wood, Nail, Book, Rubber, Fork, Sand, Iron particles, Chalk, Alpin

Discussion

562.	Entropy of vapourisation of water at 100^0C if molar heat of vaporisation is 9710 Cal mol-1 will be
Answer» Entropy of vapourisation of water at 100^0C if molar heat of vaporisation is 9710 Cal mol-1 will be

Discussion

563.	The area of a square is 16 cm2. The area of the rectangle with length equal to double the side of the square and breadth equal to half of the side of the square is ___cm2
Answer» The area of a square is $16 c m^{2}$ . The area of the rectangle with length equal to double the side of the square and breadth equal to half of the side of the square is ___ $c m^{2}$

Discussion

564.	As, "Paramagnetism is due to the presence of one or more unpaired electrons which are attracted by the magnetic field." then, why O_2 is a paramagnetic subs†an ce
Answer» As, "Paramagnetism is due to the presence of one or more unpaired electrons which are attracted by the magnetic field." then, why O_2 is a paramagnetic subs†an ce

Discussion

565.	a planet of mass m moves around the sun of mass Min a eliptical orbit the maximum and minimum distance of the planet from sun are R1 and R2 respectively the time period of the planet is proportional to
Answer» a planet of mass m moves around the sun of mass Min a eliptical orbit the maximum and minimum distance of the planet from sun are R1 and R2 respectively the time period of the planet is proportional to

Discussion

566.	A particle moves on a circular path of radius r, It completes one revolution in 40 s. Caluculate distance and displacement in 2 min 20 s.
Answer» A particle moves on a circular path of radius r, It completes one revolution in 40 s. Caluculate distance and displacement in 2 min 20 s.

Discussion

567.	Which simple machine do you see in the following images?
Answer» Which simple machine do you see in the following images?

Discussion

568.	A man weighing 49kg carries a bag of 2 kg. He climbs to the top of a building 100m tall in 5 minutes. Calculate the work done by the man and the power he develops.
Answer» A man weighing 49kg carries a bag of 2 kg. He climbs to the top of a building 100m tall in 5 minutes. Calculate the work done by the man and the power he develops.

Discussion

569.	Can we hear any sound on the moon?
Answer» Can we hear any sound on the moon?

Discussion

570.

(क) उच्चारणं कुरुत। छात्रः गजः घटः शिक्षकः मकरः दीपकः मयूरः बिडालः अश्वः शुकः मूषकः चन्द्रः बालकः चालकः गायकः (ख) चित्राणि दृष्ट्वा पदानि उच्चारयत। कृषकः वृषभः भल्लूकः मण्डूकः कपोतः पर्यङ्कः दूरभाषः काकः सौचिकः

Answer»

(क) उच्चारणं कुरुत।

छात्रः	गजः	घटः
शिक्षकः	मकरः	दीपकः
मयूरः	बिडालः	अश्वः
शुकः	मूषकः	चन्द्रः
बालकः	चालकः	गायकः

(ख) चित्राणि दृष्ट्वा पदानि उच्चारयत।


कृषकः	वृषभः	भल्लूकः

मण्डूकः	कपोतः	पर्यङ्कः

दूरभाषः	काकः	सौचिकः

Discussion

571.	Explain any three fundamental quantities along with their standard units. Mention any one derived quantity which can be formed using any two of these three fundamental quantities.
Answer» Explain any three fundamental quantities along with their standard units. Mention any one derived quantity which can be formed using any two of these three fundamental quantities.

Discussion

572.	To make one cubic meter of 1:2:4 by volume concrete, the volume of coarse aggregate required is
Answer» To make one cubic meter of $1 : 2 : 4$ by volume concrete, the volume of coarse aggregate required is

Discussion

573.	The following figure shows four cells fixed on the board. Draw lines to indicate how you will connect their terminals with wires to make a battery of four cells.
Answer» The following figure shows four cells fixed on the board. Draw lines to indicate how you will connect their terminals with wires to make a battery of four cells.

Discussion

574.	The area of the given figure is:
Answer» The area of the given figure is:

574.

The area of the given figure is:

Answer»

The area of the given figure is:

Discussion

575.	Which of the following are the examples of ‘Contact Forces’. Code:
Answer» Which of the following are the examples of ‘Contact Forces’. Code:

575.

Which of the following are the examples of ‘Contact Forces’. Code:

Answer»

Which of the following are the examples of ‘Contact Forces’.

Code:

Discussion

576.	Which among the following symbols correctly represents the given diagram?
Answer» Which among the following symbols correctly represents the given diagram?

Discussion

577.	A point object is placed at the centre of a glass sphere of radius 6 cm and refractive index 1.5. The distance of the virtual image from the surface of the sphere is
Answer» A point object is placed at the centre of a glass sphere of radius $6 cm$ and refractive index $1.5$ . The distance of the virtual image from the surface of the sphere is

Discussion

578.	The density of eq. wt of a metal are 10.5 g cm3 and 100, respectively. The time required for a current of 3 amp to deposit a 0.005 mm thick layer of the same metal on an area of 80 cm2 is closest to (A) 120 s(B) 135 s(C) 67.5 s(D) 270 s
Answer» The density of eq. wt of a metal are 10.5 g cm3 and 100, respectively. The time required for a current of 3 amp to deposit a 0.005 mm thick layer of the same metal on an area of 80 cm2 is closest to (A) 120 s(B) 135 s(C) 67.5 s(D) 270 s

Discussion

579.	Sound is produced by vibration. To detect sound, some part of our ear should also vibrate when sound strikes it. Which part of the ear is this and how does it help us in hearing the sound?
Answer» Sound is produced by vibration. To detect sound, some part of our ear should also vibrate when sound strikes it. Which part of the ear is this and how does it help us in hearing the sound?

Discussion

580.	the time period of oscillations of a simple pendulum is 1 min if its length is increased by 44% then its new timeperio
Answer» the time period of oscillations of a simple pendulum is 1 min if its length is increased by 44% then its new timeperio

Discussion

581.	Preeti is running short of connecting wires. To complete an electric circuit, she may use:
Answer» Preeti is running short of connecting wires. To complete an electric circuit, she may use:

Discussion

582.	The following is the shadow of a 3-D object.Which of these objects does the shadow belong to?
Answer» The following is the shadow of a 3-D object. Which of these objects does the shadow belong to?

Discussion

583.	Metric system was introduced in:
Answer» Metric system was introduced in:

Discussion

584.	All conductors of electricity are magnetic substances. Do you agree? Justify your answer with examples.
Answer» All conductors of electricity are magnetic substances. Do you agree? Justify your answer with examples.

Discussion

585.	Mechanical advantage of a machine is 4. It is used to raise a load of 30 kgf. What is the effort needed?
Answer» Mechanical advantage of a machine is $4$ . It is used to raise a load of $30 k g f$ . What is the effort needed?

Discussion

586.	The image of a square hole in a screen illuminated by light is obtained on another screen with the help of converging lens. The distance of the hole from the lens is 40 cm. If the area of the image is nine times that of the hole, the focal length of the lens is
Answer» The image of a square hole in a screen illuminated by light is obtained on another screen with the help of converging lens. The distance of the hole from the lens is $40 cm$ . If the area of the image is nine times that of the hole, the focal length of the lens is

Discussion

587.	When the the aperture is smaller how the point of incidence of a incident ray coincides with the pole ?
Answer» When the the aperture is smaller how the point of incidence of a incident ray coincides with the pole ?

Discussion

588.	If you are using the SI system, you will always measure length in metres. True or false?
Answer» If you are using the SI system, you will always measure length in metres. True or false?

Discussion

589.	How is a compass used to find directions?
Answer» How is a compass used to find directions?

Discussion

590.	Which gear will have the maximum speed of rotation in the system of gears given in the below image?
Answer» Which gear will have the maximum speed of rotation in the system of gears given in the below image?

590.

Which gear will have the maximum speed of rotation in the system of gears given in the below image?

Answer»

Which gear will have the maximum speed of rotation in the system of gears given in the below image?

Discussion

591.	If the length of rectangle is (√7+√2) unitsand breadth is ( √7-√2) units.Then the area of rectangle is :
Answer» If the length of rectangle is ( $\sqrt{7}$ + $\sqrt{2}$ ) units and breadth is ( $\sqrt{7}$ - $\sqrt{2}$ ) units. Then the area of rectangle is :

Discussion

592.	What can you say about the motion of an object if its speed-time graph is a straight line parallel to the time axis ?
Answer» What can you say about the motion of an object if its speed-time graph is a straight line parallel to the time axis ?

Discussion

593.	If the length of the rectangle is made twice, find the new breadth such that the area remains the same.
Answer» If the length of the rectangle is made twice, find the new breadth such that the area remains the same.

Discussion

594.	3.A particle moves from A to B in a circular path of radius R covering an angle thet as shown in figure. Find the ratio of distance and magnitude of displacement of the particle.
Answer» 3.A particle moves from A to B in a circular path of radius R covering an angle thet as shown in figure. Find the ratio of distance and magnitude of displacement of the particle.

Discussion

595.	The planets which are found inside the orbit of Mars are known as___.
Answer» The planets which are found inside the orbit of Mars are known as___.

Discussion

596.	Which of the following planets do not have any natural satellite?
Answer» Which of the following planets do not have any natural satellite?

Discussion

597.	A student performs experiment with simple pendulum and measures time for 10 vibrations. If he measure a time for 100 vibrations ,the relative error in measurements of time period will be reduced by ?
Answer» A student performs experiment with simple pendulum and measures time for 10 vibrations. If he measure a time for 100 vibrations ,the relative error in measurements of time period will be reduced by ?

Discussion

598.	A magnet is placed vertically on a paper. Then theneutral point obtained on the paper is/are(1) 1(2) 2(3) 3(4) Zero
Answer» A magnet is placed vertically on a paper. Then theneutral point obtained on the paper is/are(1) 1(2) 2(3) 3(4) Zero

Discussion

599.

Question 7 Two students while sitting across a table looked down on to its top surface. They noticed that they could see their own and each other’s image. The table top is likely to be made of: (a) Unpolished wood (b) Red stone (c) Glass sheet (d) Wood top covered with cloth

Answer»

Question 7

Two students while sitting across a table looked down on to its top surface. They noticed that they could see their own and each other’s image. The table top is likely to be made of:

(a) Unpolished wood

(b) Red stone

(c) Glass sheet

(d) Wood top covered with cloth

Discussion

600.	When the distance between the object and the source of light is increased
Answer» When the distance between the object and the source of light is increased

Discussion

Explore topic-wise InterviewSolutions in .

What does the line, ‘Therefore are we wreathing a flowery band to bind us to earth’ suggest to you?

97. If time for 50 oscillation of Pendulum is 80 sec using a wristwatch of 1 second resolution then accuracy in measurement of time period of oscillation is 1) 1.25% 2) 2.5% 3) 5% 4) 10%

two long current carrying thin wires , both with current I are held by insulating threads of length L and are in equilibrium with threads making an angle theta with the vertical . if the wires have mass M per unit length then value of I is?

A cyclist moves with a speed of 45 km/hr. How much distance will he cover in 212 hrs?

What is the relation between the distance of a body from a point and its motion?

6.In the adjoining figure is shown a closed path P.A long straight conductor carrying current I passes through O and perpendicular to the plane of paper.Then which of the following holds good?

With respect to OCTAHEDRAL Voids 1. Discuss its LOCATION2. Discuss its FORMATION3. DERIVE the RADIUS of the Void

In which year did we start using metric measures in India?

The given images depict ________ objects. Answer using the given characters.

8. Two identical bar magnet each of magnetic moment M are placed as shown in figure. magnetic field at point P is.

What are magnetic and non-magnetic materials? Explain and categorise the given substances into two groups-magnetic and non-magnetic.Keys, Glass, Wood, Nail, Book, Rubber, Fork, Sand, Iron particles, Chalk, Alpin

Entropy of vapourisation of water at 100^0C if molar heat of vaporisation is 9710 Cal mol-1 will be

The area of a square is 16 cm2. The area of the rectangle with length equal to double the side of the square and breadth equal to half of the side of the square is ___cm2

As, "Paramagnetism is due to the presence of one or more unpaired electrons which are attracted by the magnetic field." then, why O_2 is a paramagnetic subs†an ce

a planet of mass m moves around the sun of mass Min a eliptical orbit the maximum and minimum distance of the planet from sun are R1 and R2 respectively the time period of the planet is proportional to

A particle moves on a circular path of radius r, It completes one revolution in 40 s. Caluculate distance and displacement in 2 min 20 s.

Which simple machine do you see in the following images?

A man weighing 49kg carries a bag of 2 kg. He climbs to the top of a building 100m tall in 5 minutes. Calculate the work done by the man and the power he develops.

Can we hear any sound on the moon?

Explain any three fundamental quantities along with their standard units. Mention any one derived quantity which can be formed using any two of these three fundamental quantities.

To make one cubic meter of 1:2:4 by volume concrete, the volume of coarse aggregate required is

The following figure shows four cells fixed on the board. Draw lines to indicate how you will connect their terminals with wires to make a battery of four cells.

The area of the given figure is:

Which of the following are the examples of ‘Contact Forces’. Code:

Which among the following symbols correctly represents the given diagram?

A point object is placed at the centre of a glass sphere of radius 6 cm and refractive index 1.5. The distance of the virtual image from the surface of the sphere is

The density of eq. wt of a metal are 10.5 g cm3 and 100, respectively. The time required for a current of 3 amp to deposit a 0.005 mm thick layer of the same metal on an area of 80 cm2 is closest to (A) 120 s(B) 135 s(C) 67.5 s(D) 270 s

Sound is produced by vibration. To detect sound, some part of our ear should also vibrate when sound strikes it. Which part of the ear is this and how does it help us in hearing the sound?

the time period of oscillations of a simple pendulum is 1 min if its length is increased by 44% then its new timeperio

Preeti is running short of connecting wires. To complete an electric circuit, she may use:

The following is the shadow of a 3-D object.Which of these objects does the shadow belong to?

Metric system was introduced in:

All conductors of electricity are magnetic substances. Do you agree? Justify your answer with examples.

Mechanical advantage of a machine is 4. It is used to raise a load of 30 kgf. What is the effort needed?

The image of a square hole in a screen illuminated by light is obtained on another screen with the help of converging lens. The distance of the hole from the lens is 40 cm. If the area of the image is nine times that of the hole, the focal length of the lens is

When the the aperture is smaller how the point of incidence of a incident ray coincides with the pole ?

If you are using the SI system, you will always measure length in metres. True or false?

How is a compass used to find directions?

Which gear will have the maximum speed of rotation in the system of gears given in the below image?

If the length of rectangle is (√7+√2) unitsand breadth is ( √7-√2) units.Then the area of rectangle is :

What can you say about the motion of an object if its speed-time graph is a straight line parallel to the time axis ?

If the length of the rectangle is made twice, find the new breadth such that the area remains the same.

3.A particle moves from A to B in a circular path of radius R covering an angle thet as shown in figure. Find the ratio of distance and magnitude of displacement of the particle.

The planets which are found inside the orbit of Mars are known as___.

Which of the following planets do not have any natural satellite?

A student performs experiment with simple pendulum and measures time for 10 vibrations. If he measure a time for 100 vibrations ,the relative error in measurements of time period will be reduced by ?

A magnet is placed vertically on a paper. Then theneutral point obtained on the paper is/are(1) 1(2) 2(3) 3(4) Zero

Question 7 Two students while sitting across a table looked down on to its top surface. They noticed that they could see their own and each other’s image. The table top is likely to be made of: (a) Unpolished wood (b) Red stone (c) Glass sheet (d) Wood top covered with cloth

When the distance between the object and the source of light is increased