9478 + Interview Questions in Physics Page 66 InterviewSolution

3251.	What is the source of vitamin A?. Name the diseases caused by the absence of Vitamin A. [3 MARKS]
Answer» What is the source of vitamin A?. Name the diseases caused by the absence of Vitamin A. [3 MARKS]

Discussion

3252.	WHAT IS THE DIFFERENCE BETWEEN THURST AND GRAVITATIONAL FORCE ?
Answer» WHAT IS THE DIFFERENCE BETWEEN THURST AND GRAVITATIONAL FORCE ?

Discussion

3253.	what is more powerful infrasonic sound or ultrasonic sound
Answer» what is more powerful infrasonic sound or ultrasonic sound

Discussion

3254.	The ciliary muscles of a normal eye are in their:(i) most relaxed state (ii) most contracted state (a) In which of the two cases is the focal length of the eye-lens more? (b) In which of the two cases is the power of the eye-lens more?Give reason for your answer.
Answer» The ciliary muscles of a normal eye are in their: (i) most relaxed state (ii) most contracted state (a) In which of the two cases is the focal length of the eye-lens more? (b) In which of the two cases is the power of the eye-lens more? Give reason for your answer.

Discussion

3255.	How does eye adjust itself to deal with light of varying intensity?
Answer» How does eye adjust itself to deal with light of varying intensity?

Discussion

3256.	121.A block of mass m is attached to lower end of a vertical spring. The spring is hung from a ceiling and has force constant value k. Mass is released from rest with the spring initially unstretched. The maximum extension produced in the length of the spring will be 1) 2mg/k 2) 4mg/k 3) mg/2k 4) mg/k
Answer» 121.A block of mass m is attached to lower end of a vertical spring. The spring is hung from a ceiling and has force constant value k. Mass is released from rest with the spring initially unstretched. The maximum extension produced in the length of the spring will be 1) 2mg/k 2) 4mg/k 3) mg/2k 4) mg/k

Discussion

3257.	When can you say that the state of motion of an object has changed?
Answer» When can you say that the state of motion of an object has changed?

Discussion

3258.	Which of the following sound waves have the highest pitch?
Answer» Which of the following sound waves have the highest pitch?

Discussion

3259.	In a photoelectric cell, the light energy gets converted into ___ energy.
Answer» In a photoelectric cell, the light energy gets converted into ___ energy.

Discussion

3260.	Can we talk on Mars?
Answer» Can we talk on Mars?

Discussion

3261.	Question 15An object of size 7.0 cm is placed at 27 cm in front of a concave mirror of focal length 18 cm. At what distance from the mirror should a screen be placed so that a sharp focused image can be obtained? Find the size and the nature of the image.
Answer» Question 15 An object of size 7.0 cm is placed at 27 cm in front of a concave mirror of focal length 18 cm. At what distance from the mirror should a screen be placed so that a sharp focused image can be obtained? Find the size and the nature of the image.

Discussion

3262.	Why does the sound reflect from hard surfaces as it can pass through it.
Answer» Why does the sound reflect from hard surfaces as it can pass through it.

Discussion

3263.	A comet is a celestial object that revolves around the Sun like a planet. What is the difference between a comet and a planet?
Answer» A comet is a celestial object that revolves around the Sun like a planet. What is the difference between a comet and a planet?

Discussion

3264.	Why are the voices of men, women and children different from each other?
Answer» Why are the voices of men, women and children different from each other?

Discussion

3265.	The initial temperatures of two bodies B and C were T1 and T2 respectively. They are brought into contact and heat starts flowing from C to B until their temperature reaches T. Which of the following is true?
Answer» The initial temperatures of two bodies B and C were $T_{1}$ and $T_{2}$ respectively. They are brought into contact and heat starts flowing from C to B until their temperature reaches $T$ . Which of the following is true?

Discussion

3266.	In millikan oil drop experiment setup, why did not the drop get stuck with the +ve charged plate as it will attract the -vely charged oil drop.also it experiences a repulsive force drom -ve charged plate.
Answer» In millikan oil drop experiment setup, why did not the drop get stuck with the +ve charged plate as it will attract the -vely charged oil drop.also it experiences a repulsive force drom -ve charged plate.

Discussion

3267.	What are the various precautions to be taken while reading a clinical thermometer?
Answer» What are the various precautions to be taken while reading a clinical thermometer?

3267.

What are the various precautions to be taken while reading a clinical thermometer?

Answer»

What are the various precautions to be taken while reading a clinical thermometer?

Discussion

3268.	The given figure shows a boy pushing a box on an inclined plane. Identify the frictional force acting on the block.
Answer» The given figure shows a boy pushing a box on an inclined plane. Identify the frictional force acting on the block.

Discussion

3269.	4. Assign a moleculer formula to phosphorus vapour if 1.35g vapour occupies 500ml at 573K and 750mm Hg
Answer» 4. Assign a moleculer formula to phosphorus vapour if 1.35g vapour occupies 500ml at 573K and 750mm Hg

Discussion

3270.	Why did not Benjamin Franklin did not died while doing the experiment of electricity
Answer» Why did not Benjamin Franklin did not died while doing the experiment of electricity

Discussion

3271.	Which of the following liquid are bad conductor of electricity - sugar solution, salt solution, tap water, distilled water and copper sulphate solution? Why?
Answer» Which of the following liquid are bad conductor of electricity - sugar solution, salt solution, tap water, distilled water and copper sulphate solution? Why?

Discussion

3272.	On rubbing a glass rod with a silk cloth why is it that the glass rod will acquire positive charge whereas the silk cloth gets negative charge and not the other way round ,why can't the glass rod get negatively charged and the silk cloth positively charged ?
Answer» On rubbing a glass rod with a silk cloth why is it that the glass rod will acquire positive charge whereas the silk cloth gets negative charge and not the other way round ,why can't the glass rod get negatively charged and the silk cloth positively charged ?

Discussion

3273.	When we ride upside down on a Rollercoaster why does our head get pulled towards our legs
Answer» When we ride upside down on a Rollercoaster why does our head get pulled towards our legs

Discussion

3274.	Name the process in which a coating of one metal can be deposited on the surface of another metal by using current from a battery.
Answer» Name the process in which a coating of one metal can be deposited on the surface of another metal by using current from a battery.

Discussion

3275.	51.Two points charges placed 3m apart have a combined charge of 24N. Find value of two charges if 1.They repel with force of 0.08N? 2.They attract with force of 0.18N?
Answer» 51.Two points charges placed 3m apart have a combined charge of 24N. Find value of two charges if 1.They repel with force of 0.08N? 2.They attract with force of 0.18N?

Discussion

3276.	Which of these forms the centre of solar system?
Answer» Which of these forms the centre of solar system?

Discussion

3277.	a gas mixture containing 2g H2, 8g He, 22g co2 and 8g o2 is enclosed in a vessel. the gas with highest partial pressure is
Answer» a gas mixture containing 2g H2, 8g He, 22g co2 and 8g o2 is enclosed in a vessel. the gas with highest partial pressure is

Discussion

3278.	the wavelenght associated witb an electron moving witb velocity 10∧10m/s i
Answer» the wavelenght associated witb an electron moving witb velocity 10∧10m/s i

Discussion

3279.	On what factors does the amount of heat produced in a conducting wire depend and what is the working principle of an electric bulb?
Answer» On what factors does the amount of heat produced in a conducting wire depend and what is the working principle of an electric bulb?

Discussion

3280.	Question 1 (a)Fill in the blank:Friction opposes the ________ between the surfaces in contact with each other.
Answer» Question 1 (a) Fill in the blank: Friction opposes the ________ between the surfaces in contact with each other.

Discussion

3281.	What is the SI unit of pressure?
Answer» What is the SI unit of pressure?

Discussion

3282.	Question 20Fig. shows comets without their tail. Show the tails of the comets at position A, B, and C. In which position will the tail be longest?
Answer» Question 20 Fig. shows comets without their tail. Show the tails of the comets at position A, B, and C. In which position will the tail be longest?

Discussion

3283.	Do solids having f centres conduct electricit
Answer» Do solids having f centres conduct electricit

Discussion

3284.	The principle on which an electric bell works on is ____________
Answer» The principle on which an electric bell works on is ____________

Discussion

3285.	Question 1Which of the following statement is not correct for an object moving along a straight path in an accelerated motion?(a) Its speed keeps changing(b) Its velocity always changes(c) It always goes away from the earth(d) A force is always acting on it
Answer» Question 1 Which of the following statement is not correct for an object moving along a straight path in an accelerated motion? (a) Its speed keeps changing (b) Its velocity always changes (c) It always goes away from the earth (d) A force is always acting on it

Discussion

3286.	The maximum value of Poisson's ratio for an elastic material is
Answer» The maximum value of Poisson's ratio for an elastic material is

Discussion

3287.

1. Relax your feet, legs and entire body. Be as quiet as you can.2. Listen to the sounds around you.3. Tell your partner softly what you heard and ask, "What did you hear?"4. Let your partner talk about or copy those sounds.5. Read out the following phrases aloud. Divide them into loud and softer sounds.clapping hands • a worm moving • sampling feet,a bud blooming • a butterfly flyinga feather dropping • an ant walking • a car movingthe wind blowing • ssshhhhwhisper • tiptoe • a leaf falling Loud sounds Softer sounds

Answer» 1. Relax your feet, legs and entire body. Be as quiet as you can.

2. Listen to the sounds around you.

3. Tell your partner softly what you heard and ask, "What did you hear?"

4. Let your partner talk about or copy those sounds.

5. Read out the following phrases aloud. Divide them into loud and softer sounds.

clapping hands • a worm moving • sampling feet,

a bud blooming • a butterfly flying

a feather dropping • an ant walking • a car moving

the wind blowing • ssshhhh

whisper • tiptoe • a leaf falling

Loud sounds	Softer sounds

Discussion

3288.	There are ___ seconds in a day.
Answer» There are ___ seconds in a day.

Discussion

3289.	Question 23Write the names of all the planets in the fig.
Answer» Question 23 Write the names of all the planets in the fig.

Discussion

3290.	A block-brake shown below has a face width of 300 mm and a mean coefficient of friction of 0.25. For an activating force of 400 N, the braking torque in Nm is
Answer» A block-brake shown below has a face width of 300 mm and a mean coefficient of friction of 0.25. For an activating force of 400 N, the braking torque in Nm is

Discussion

3291.	On a new scale of temperature (which is linear) andcalled the W scale, the freezing and boiling pointsof water are 39'W and 239 W respectively. Whatwill be the temperature on the new scale,corresponding to a temperature of 39'C on theCelsius scale?23.(1) 139-W(3) 117 VwAIPMT (Prelims)-2008\rbrack(2) 78"W(4) 200^° w
Answer» On a new scale of temperature (which is linear) andcalled the W scale, the freezing and boiling pointsof water are 39'W and 239 W respectively. Whatwill be the temperature on the new scale,corresponding to a temperature of 39'C on theCelsius scale?23.(1) 139-W(3) 117 VwAIPMT (Prelims)-2008\rbrack(2) 78"W(4) 200^° w

Discussion

3292.	Two solid metal balls of radii r and 2r are falling with their terminal speeds in a viscous liquid what is the ratio of drag force acting on these two balls
Answer» Two solid metal balls of radii r and 2r are falling with their terminal speeds in a viscous liquid what is the ratio of drag force acting on these two balls

Discussion

3293.	Explain ionisation enthalpy .
Answer» Explain ionisation enthalpy .

Discussion

3294.	Will a cell get charged if anode of cell is connected to cathode of external source or vice versa?
Answer» Will a cell get charged if anode of cell is connected to cathode of external source or vice versa?

Discussion

3295.	Which planet is fourth from the sun?
Answer» Which planet is fourth from the sun?

Discussion

3296.	What is the source of kinetic energy in the particles of any subs†an ce so that they keep vibrating or moving within the subs†an ce
Answer» What is the source of kinetic energy in the particles of any subs†an ce so that they keep vibrating or moving within the subs†an ce

Discussion

3297.	Name the device which is use to measure pressure difference?
Answer» Name the device which is use to measure pressure difference?

Discussion

3298.	A person wants a real image of his own , 3 times enlarged. Where should he stand infront of a con cave mirror of radius of curvature 30 cm?
Answer» A person wants a real image of his own , 3 times enlarged. Where should he stand infront of a con cave mirror of radius of curvature 30 cm?

Discussion

3299.	The area of a rectangular piece of board is 36 square centimetre. If its thickness is 4 cm, what is the volume of the board?
Answer» The area of a rectangular piece of board is 36 square centimetre. If its thickness is 4 cm, what is the volume of the board?

Discussion

3300.	25. Why is potassium dichromate diamagnetic as well as coloured?
Answer» 25. Why is potassium dichromate diamagnetic as well as coloured?

Discussion

Explore topic-wise InterviewSolutions in .

What is the source of vitamin A?. Name the diseases caused by the absence of Vitamin A. [3 MARKS]

WHAT IS THE DIFFERENCE BETWEEN THURST AND GRAVITATIONAL FORCE ?

what is more powerful infrasonic sound or ultrasonic sound

The ciliary muscles of a normal eye are in their:(i) most relaxed state (ii) most contracted state (a) In which of the two cases is the focal length of the eye-lens more? (b) In which of the two cases is the power of the eye-lens more?​Give reason for your answer.

How does eye adjust itself to deal with light of varying intensity?

When can you say that the state of motion of an object has changed?

Which of the following sound waves have the highest pitch?

In a photoelectric cell, the light energy gets converted into ___ energy.

Can we talk on Mars?

Question 15An object of size 7.0 cm is placed at 27 cm in front of a concave mirror of focal length 18 cm. At what distance from the mirror should a screen be placed so that a sharp focused image can be obtained? Find the size and the nature of the image.

Why does the sound reflect from hard surfaces as it can pass through it.

A comet is a celestial object that revolves around the Sun like a planet. What is the difference between a comet and a planet?

Why are the voices of men, women and children different from each other?

The initial temperatures of two bodies B and C were T1 and T2 respectively. They are brought into contact and heat starts flowing from C to B until their temperature reaches T. Which of the following is true?

In millikan oil drop experiment setup, why did not the drop get stuck with the +ve charged plate as it will attract the -vely charged oil drop.also it experiences a repulsive force drom -ve charged plate.

What are the various precautions to be taken while reading a clinical thermometer?

The given figure shows a boy pushing a box on an inclined plane. Identify the frictional force acting on the block.

4. Assign a moleculer formula to phosphorus vapour if 1.35g vapour occupies 500ml at 573K and 750mm Hg

Why did not Benjamin Franklin did not died while doing the experiment of electricity

Which of the following liquid are bad conductor of electricity - sugar solution, salt solution, tap water, distilled water and copper sulphate solution? Why?

On rubbing a glass rod with a silk cloth why is it that the glass rod will acquire positive charge whereas the silk cloth gets negative charge and not the other way round ,why can't the glass rod get negatively charged and the silk cloth positively charged ?

When we ride upside down on a Rollercoaster why does our head get pulled towards our legs

Name the process in which a coating of one metal can be deposited on the surface of another metal by using current from a battery.

51.Two points charges placed 3m apart have a combined charge of 24N. Find value of two charges if 1.They repel with force of 0.08N? 2.They attract with force of 0.18N?

Which of these forms the centre of solar system?

a gas mixture containing 2g H2, 8g He, 22g co2 and 8g o2 is enclosed in a vessel. the gas with highest partial pressure is

the wavelenght associated witb an electron moving witb velocity 10∧10m/s i

On what factors does the amount of heat produced in a conducting wire depend and what is the working principle of an electric bulb?

Question 1 (a)Fill in the blank:Friction opposes the ________ between the surfaces in contact with each other.

What is the SI unit of pressure?

Question 20Fig. shows comets without their tail. Show the tails of the comets at position A, B, and C. In which position will the tail be longest?

Do solids having f centres conduct electricit

The principle on which an electric bell works on is ____________

Question 1Which of the following statement is not correct for an object moving along a straight path in an accelerated motion?(a) Its speed keeps changing(b) Its velocity always changes(c) It always goes away from the earth(d) A force is always acting on it

The maximum value of Poisson's ratio for an elastic material is

There are ___ seconds in a day.

Question 23Write the names of all the planets in the fig.

A block-brake shown below has a face width of 300 mm and a mean coefficient of friction of 0.25. For an activating force of 400 N, the braking torque in Nm is

Two solid metal balls of radii r and 2r are falling with their terminal speeds in a viscous liquid what is the ratio of drag force acting on these two balls

Explain ionisation enthalpy .

Will a cell get charged if anode of cell is connected to cathode of external source or vice versa?

Which planet is fourth from the sun?

What is the source of kinetic energy in the particles of any subs†an ce so that they keep vibrating or moving within the subs†an ce

Name the device which is use to measure pressure difference?

A person wants a real image of his own , 3 times enlarged. Where should he stand infront of a con cave mirror of radius of curvature 30 cm?

The area of a rectangular piece of board is 36 square centimetre. If its thickness is 4 cm, what is the volume of the board?

25. Why is potassium dichromate diamagnetic as well as coloured?

The ciliary muscles of a normal eye are in their:(i) most relaxed state (ii) most contracted state (a) In which of the two cases is the focal length of the eye-lens more? (b) In which of the two cases is the power of the eye-lens more?Give reason for your answer.