6277 + Interview Questions in Physics Page 18 InterviewSolution

851.	A particle located at x=0and t=0 start moving along the positive x-direction with velocity v that varies as v=p√x the displacement of particle varies with time as? Here p is constant
Answer» A particle located at x=0and t=0 start moving along the positive x-direction with velocity v that varies as v=p√x the displacement of particle varies with time as? Here p is constant

Discussion

852.	Rank the units of pressure from highest to the lowest
Answer» Rank the units of pressure from highest to the lowest

Discussion

853.	The volume of air _______ when temperature increases.
Answer» The volume of air _______ when temperature increases.

Discussion

854.	Find the average speed if a bus if it moves from point A to B at a speed of 30kmph amd returns at a speed of 50kmph. Pls answer urgently Regards CJ
Answer» Find the average speed if a bus if it moves from point A to B at a speed of 30kmph amd returns at a speed of 50kmph. Pls answer urgently Regards CJ

Discussion

855.	A bus increases its speed from 20 km/h to 50 km/h in 10 seconds. Its acceleration is:(a) 30 m/s2 (b) 3 m/s2 (c) 18 m/s2 (d) 0.83 m/s2Choose the correct answer.
Answer» A bus increases its speed from 20 km/h to 50 km/h in 10 seconds. Its acceleration is: (a) 30 m/s²(b) 3 m/s²(c) 18 m/s²(d) 0.83 m/s² Choose the correct answer.

Discussion

856.	An ideal refrigerator runs between -23°C to 27°C. Find the heat rejected to atmosphere for every joule of work input is
Answer» An ideal refrigerator runs between -23°C to 27°C. Find the heat rejected to atmosphere for every joule of work input is

Discussion

857.	An air bubble inside water behaves like a diverging lens. Explain.
Answer» An air bubble inside water behaves like a diverging lens. Explain.

Discussion

858.	Units of force are
Answer» Units of force are

Discussion

859.	The difference between the circumference and radius of a circle is 37 cm. The area of the circle is(a) 111 cm2 (b) 148 cm2 (c) 154 cm2 (d) 258 cm2
Answer» The difference between the circumference and radius of a circle is 37 cm. The area of the circle is (a) 111 cm² (b) 148 cm² (c) 154 cm² (d) 258 cm²

Discussion

860.	Question 2 The arrangement to store two magnets is shown by figures (a), (b), (c) and (d). Which one of them is the correct arrangement?
Answer» Question 2 The arrangement to store two magnets is shown by figures (a), (b), (c) and (d). Which one of them is the correct arrangement?

860.

Question 2 The arrangement to store two magnets is shown by figures (a), (b), (c) and (d). Which one of them is the correct arrangement?

Answer»

Question 2

The arrangement to store two magnets is shown by figures (a), (b), (c) and (d). Which one of them is the correct arrangement?

Discussion

861.	10.When the traffic light turns green ,a car moves with a constant acceleration 2 m/s . At the same time a truck moving with a constant speed of 10 m/s overtake s and passes the car . How far beyond the starting point will the car overtake s the truck ? How fast will the car be travelling at that instant ?
Answer» 10.When the traffic light turns green ,a car moves with a constant acceleration 2 m/s . At the same time a truck moving with a constant speed of 10 m/s overtake s and passes the car . How far beyond the starting point will the car overtake s the truck ? How fast will the car be travelling at that instant ?

Discussion

862.	What are magnetic lines
Answer» What are magnetic lines

Discussion

863.	A motorcyclist starts from rest and reaches a speed of 6 m/s after travelling with uniform acceleration for 3 s. What is his acceleration ?
Answer» A motorcyclist starts from rest and reaches a speed of $6 m / s$ after travelling with uniform acceleration for $3 s$ . What is his acceleration ?

Discussion

864.	Question 8 (iii)Fill in the blanks.(c) Small amount of a mineral salt present naturally in water makes it a ___ of electricity.
Answer» Question 8 (iii) Fill in the blanks. (c) Small amount of a mineral salt present naturally in water makes it a ___ of electricity.

Discussion

865.	A wire has a resistance of 3 Ω at 40∘C and resistance of 5 Ω at 100∘C. The temperature coefficient of resistance of the wire is
Answer» A wire has a resistance of $3 Ω$ at $40^{\circ}$ C and resistance of $5 Ω$ at $100^{\circ}$ C. The temperature coefficient of resistance of the wire is

Discussion

866.	540 g of ice at 0 degree celsius is mixed with 540 g of water at 80 degree celsius. The final temperature of the mixture is (1) 0 degree celsius (2) 40 degree celsiuc (3) 80 degree celsius (4) less than 0 degree celsius
Answer» 540 g of ice at 0 degree celsius is mixed with 540 g of water at 80 degree celsius. The final temperature of the mixture is (1) 0 degree celsius (2) 40 degree celsiuc (3) 80 degree celsius (4) less than 0 degree celsius

Discussion

867.	What is buoyancy? How does it causes?
Answer» What is buoyancy? How does it causes?

Discussion

868.	What kind or mirror will you use as a rear view mirror in a car–convex or concave? Why?
Answer» What kind or mirror will you use as a rear view mirror in a car–convex or concave? Why?

Discussion

869.	Why do roofs of houses made of tin get blown off by high speed winds
Answer» Why do roofs of houses made of tin get blown off by high speed winds

Discussion

870.	A hollow cone is filled up with air at high pressure. At which point pressure will be maximum?
Answer» A hollow cone is filled up with air at high pressure. At which point pressure will be maximum?

870.

A hollow cone is filled up with air at high pressure. At which point pressure will be maximum?

Answer»

A hollow cone is filled up with air at high pressure. At which point pressure will be maximum?

Discussion

871.	A plane wave of wavelength 6250 A is incidentnormally on a slit of width 2 x 10-cm. The widtihof the principal maximum on a screen distant 50cm will be(a) 312.5x lor3cm (b) 312.5x 104m(c) 312.5x 10-3m (d) 3125x 10-6 cm
Answer» A plane wave of wavelength 6250 A is incidentnormally on a slit of width 2 x 10-cm. The widtihof the principal maximum on a screen distant 50cm will be(a) 312.5x lor3cm (b) 312.5x 104m(c) 312.5x 10-3m (d) 3125x 10-6 cm

Discussion

872.	600 mL of a mixture of CO and Carbon dioxide weight 1 g at NTP . What is the volume of Carbon dioxide in the mixture at NTP?
Answer» 600 mL of a mixture of CO and Carbon dioxide weight 1 g at NTP . What is the volume of Carbon dioxide in the mixture at NTP?

Discussion

873.	38.Resistance across AB as shown in figure is 1. 2 ohm 2. 4 ohm 3. 6 ohm 4. 12 ohm
Answer» 38.Resistance across AB as shown in figure is 1. 2 ohm 2. 4 ohm 3. 6 ohm 4. 12 ohm

Discussion

874.	When does a lunar eclipse take place? Does it occur on every full moon’s night?
Answer» When does a lunar eclipse take place? Does it occur on every full moon’s night?

Discussion

875.	Five 100 W bulbs are used for 10 hr every day for 30 days. If the rate of electricity is Rs. 4.00/unit, find the cost of electricity.
Answer» Five $100 W$ bulbs are used for $10 hr$ every day for $30 days$ . If the rate of electricity is $Rs. 4.00 / unit$ , find the cost of electricity.

Discussion

876.	Formation of spectrum by a glass prism takes place because:
Answer» Formation of spectrum by a glass prism takes place because:

Discussion

877.	What causes air movement from one place to another?
Answer» What causes air movement from one place to another?

Discussion

878.	48. What is CALOMALE electrode ?
Answer» 48. What is CALOMALE electrode ?

Discussion

879.	A boy was playing with a spongy ball, compressing and releasing it. What will be the nature (positive, negative or zero) of work done by the boy on the ball and the ball on the boy respectively while compressing?
Answer» A boy was playing with a spongy ball, compressing and releasing it. What will be the nature (positive, negative or zero) of work done by the boy on the ball and the ball on the boy respectively while compressing?

Discussion

880.	A cow is tied at point ‘E’ with a rope of 4 m. E and F are the midpoints of AD and GH respectively. Find the amount of area that can be grazed by the cow in m2.
Answer» A cow is tied at point ‘E’ with a rope of $4 m$ . E and F are the midpoints of AD and GH respectively. Find the amount of area that can be grazed by the cow in $m^{2}$ .

Discussion

881.	Question 4A tiny mirror M is fixed on a piece of cardboard placed on a table. The cardboard is illuminated by light from a bulb. The position of eye with respect to position of bulb is shown in the figure as A, B, C and D. In which position mirror will be visible?(a) A(b) B(c) C(d) D
Answer» Question 4 A tiny mirror M is fixed on a piece of cardboard placed on a table. The cardboard is illuminated by light from a bulb. The position of eye with respect to position of bulb is shown in the figure as A, B, C and D. In which position mirror will be visible? (a) A (b) B (c) C (d) D

881.

Question 4A tiny mirror M is fixed on a piece of cardboard placed on a table. The cardboard is illuminated by light from a bulb. The position of eye with respect to position of bulb is shown in the figure as A, B, C and D. In which position mirror will be visible?(a) A(b) B(c) C(d) D

Answer»

Question 4

A tiny mirror M is fixed on a piece of cardboard placed on a table. The cardboard is illuminated by light from a bulb. The position of eye with respect to position of bulb is shown in the figure as A, B, C and D. In which position mirror will be visible?

(a) A

(b) B

(c) C

(d) D

Discussion

882.	ntIn a circuit L, C and R are connected in series with an alternating voltage source of frequency f. The current leads the voltage by 45^°. The value of C isn
Answer» ntIn a circuit L, C and R are connected in series with an alternating voltage source of frequency f. The current leads the voltage by 45^°. The value of C isn

Discussion

883.	a water †an k is 20 m deep if the water barometer reads 10m at that place them what is pressure at the bottom of the †an k in atmosphere options are: (a)1 atm. (b)2 atm. (c)3 atm. ()4 atm.
Answer» a water †an k is 20 m deep if the water barometer reads 10m at that place them what is pressure at the bottom of the †an k in atmosphere options are: (a)1 atm. (b)2 atm. (c)3 atm. ()4 atm.

Discussion

884.	u=A\sqrt X /b+X∧2 here u is potential energy and x is dis†an cethen find a/b
Answer» u=A\sqrt X /b+X∧2 here u is potential energy and x is dis†an cethen find a/b

Discussion

885.	In general, does it become colder or warmer as the latitude increases? Give reasons.
Answer» In general, does it become colder or warmer as the latitude increases? Give reasons.

Discussion

886.	15. If the radius and height of a cone both are increased by 10 ℅ ,then the volume of the cone is increased by
Answer» 15. If the radius and height of a cone both are increased by 10 ℅ ,then the volume of the cone is increased by

Discussion

887.	draw the ray diagram of spherical mirror
Answer» draw the ray diagram of spherical mirror

Discussion

888.	Ramu’s farmland is divided into 9 equal parts. What is the fraction of the land on which he grows potatoes?
Answer» Ramu’s farmland is divided into 9 equal parts. What is the fraction of the land on which he grows potatoes?

Discussion

889.	Supriya while doing an experiment in a science laboratory keep a laboratory thermometer 'p' 10 cm above from the flame of the candle .Her friend Riya kept the similar thermometer 'Q' 10 side from the flame of the candle . In which thermometer 'p'or 'q'the rise in temperature will be faster give reason for your answer
Answer» Supriya while doing an experiment in a science laboratory keep a laboratory thermometer 'p' 10 cm above from the flame of the candle .Her friend Riya kept the similar thermometer 'Q' 10 side from the flame of the candle . In which thermometer 'p'or 'q'the rise in temperature will be faster give reason for your answer

889.

Supriya while doing an experiment in a science laboratory keep a laboratory thermometer 'p' 10 cm above from the flame of the candle .Her friend Riya kept the similar thermometer 'Q' 10 side from the flame of the candle . In which thermometer 'p'or 'q'the rise in temperature will be faster give reason for your answer

Answer»

Supriya while doing an experiment in a science laboratory keep a laboratory thermometer 'p' 10 cm above from the flame of the candle .Her friend Riya kept the similar thermometer 'Q' 10 side from the flame of the candle .

In which thermometer 'p'or 'q'the rise in temperature will be faster give reason for your answer

Discussion

890.	Question 1The distance of the point P(2,3) from the x - axis is:(A) 2(B) 3(C) 1(D) 5
Answer» Question 1 The distance of the point P(2,3) from the x - axis is: (A) 2 (B) 3 (C) 1 (D) 5

Discussion

891.	A 1 kg block collides with a horizontal weightless spring of force-cons†an t 2.75 N/m. The block compresses the spring 4 m from the rest position. If the coefficient of kinetic friction between the block and horizontal surface is 0.25, the speed of the block at the ins†an t of collision is_________:
Answer» A 1 kg block collides with a horizontal weightless spring of force-cons†an t 2.75 N/m. The block compresses the spring 4 m from the rest position. If the coefficient of kinetic friction between the block and horizontal surface is 0.25, the speed of the block at the ins†an t of collision is_________:

Discussion

892.	Magma coming out of a volcano onto the Earth's surface is called?
Answer» Magma coming out of a volcano onto the Earth's surface is called?

Discussion

893.	24 cells, each having the same e.m.f and 2 ohm internal resistance, are used to draw maximum current through an external resistance of 3 ohm. The cells should be connected: 1) In parallel 2) In series 3) In 4 row each having 6 cells 4) In 6 rows each having 4 cells
Answer» 24 cells, each having the same e.m.f and 2 ohm internal resistance, are used to draw maximum current through an external resistance of 3 ohm. The cells should be connected: 1) In parallel 2) In series 3) In 4 row each having 6 cells 4) In 6 rows each having 4 cells

Discussion

894.	Calculate the approximate area of the banana leaf, if each square is of the area 1 cm2. 17
Answer» Calculate the approximate area of the banana leaf, if each square is of the area $1 {cm}^{2}$ . 17

Discussion

895.	In the hot water heating system there is a cylinderical pipe of length 42m and diameter 5 cm.Find the total radiating surface n the system
Answer» In the hot water heating system there is a cylinderical pipe of length 42m and diameter 5 cm.Find the total radiating surface n the system

Discussion

896.	How temperature affect speed of sound?
Answer» How temperature affect speed of sound?

Discussion

897.	12. If vapor pressure exerts force on the surface of the liquid in downward direction then how vapor pressure will cancel out the atmospheric pressure which is in the same direction during boiling?
Answer» 12. If vapor pressure exerts force on the surface of the liquid in downward direction then how vapor pressure will cancel out the atmospheric pressure which is in the same direction during boiling?

Discussion

898.	(3) 7.2In the figure shown, water drains out through a smallorifice at the bottom of a large tank. Point A lies atthe surface of liquid, point B lies at theliquid column and the point C lies at the orifice. Hencewhich of the following statement is incorrect?middle of(1) At point A, the pressure is atmospheric(2) The pressure at point C is pgH(3) The pressure at point B is not equal to ρ g(4) All of these2
Answer» (3) 7.2In the figure shown, water drains out through a smallorifice at the bottom of a large tank. Point A lies atthe surface of liquid, point B lies at theliquid column and the point C lies at the orifice. Hencewhich of the following statement is incorrect?middle of(1) At point A, the pressure is atmospheric(2) The pressure at point C is pgH(3) The pressure at point B is not equal to ρ g(4) All of these2

Discussion

899.	18 Which of the following is correct? 1. On dilution, the value of both conductancm ánd molar conductance increases(2) On dilution, the value of conductanceincreases but the value of molar conductancedecreasesOn dilution, the value of conductamcedecreases but the value of molar conductanceincreases(4) On dilution, the value of both conductanceand molar conductance decreases
Answer» 18 Which of the following is correct? 1. On dilution, the value of both conductancm ánd molar conductance increases(2) On dilution, the value of conductanceincreases but the value of molar conductancedecreasesOn dilution, the value of conductamcedecreases but the value of molar conductanceincreases(4) On dilution, the value of both conductanceand molar conductance decreases

Discussion

900.	What is shown in the given figure?
Answer» What is shown in the given figure?

900.

What is shown in the given figure?

Answer»

What is shown in the given figure?

Discussion

Explore topic-wise InterviewSolutions in .

A particle located at x=0and t=0 start moving along the positive x-direction with velocity v that varies as v=p√x the displacement of particle varies with time as? Here p is constant

Rank the units of pressure from highest to the lowest

The volume of air _______ when temperature increases.

Find the average speed if a bus if it moves from point A to B at a speed of 30kmph amd returns at a speed of 50kmph. Pls answer urgently Regards CJ

A bus increases its speed from 20 km/h to 50 km/h in 10 seconds. Its acceleration is:(a) 30 m/s2 (b) 3 m/s2 (c) 18 m/s2 (d) 0.83 m/s2Choose the correct answer.

An ideal refrigerator runs between -23°C to 27°C. Find the heat rejected to atmosphere for every joule of work input is

An air bubble inside water behaves like a diverging lens. Explain.

Units of force are

The difference between the circumference and radius of a circle is 37 cm. The area of the circle is(a) 111 cm2 (b) 148 cm2 (c) 154 cm2 (d) 258 cm2

Question 2 The arrangement to store two magnets is shown by figures (a), (b), (c) and (d). Which one of them is the correct arrangement?

What are magnetic lines

A motorcyclist starts from rest and reaches a speed of 6 m/s after travelling with uniform acceleration for 3 s. What is his acceleration ?

Question 8 (iii)Fill in the blanks.(c) Small amount of a mineral salt present naturally in water makes it a ___ of electricity.

A wire has a resistance of 3 Ω at 40∘C and resistance of 5 Ω at 100∘C. The temperature coefficient of resistance of the wire is

540 g of ice at 0 degree celsius is mixed with 540 g of water at 80 degree celsius. The final temperature of the mixture is (1) 0 degree celsius (2) 40 degree celsiuc (3) 80 degree celsius (4) less than 0 degree celsius

What is buoyancy? How does it causes?

What kind or mirror will you use as a rear view mirror in a car–convex or concave? Why?

Why do roofs of houses made of tin get blown off by high speed winds

A hollow cone is filled up with air at high pressure. At which point pressure will be maximum?

A plane wave of wavelength 6250 A is incidentnormally on a slit of width 2 x 10-cm. The widtihof the principal maximum on a screen distant 50cm will be(a) 312.5x lor3cm (b) 312.5x 104m(c) 312.5x 10-3m (d) 3125x 10-6 cm

600 mL of a mixture of CO and Carbon dioxide weight 1 g at NTP . What is the volume of Carbon dioxide in the mixture at NTP?

38.Resistance across AB as shown in figure is 1. 2 ohm 2. 4 ohm 3. 6 ohm 4. 12 ohm

When does a lunar eclipse take place? Does it occur on every full moon’s night?

Five 100 W bulbs are used for 10 hr every day for 30 days. If the rate of electricity is Rs. 4.00/unit, find the cost of electricity.

Formation of spectrum by a glass prism takes place because:

What causes air movement from one place to another?

48. What is CALOMALE electrode ?

A boy was playing with a spongy ball, compressing and releasing it. What will be the nature (positive, negative or zero) of work done by the boy on the ball and the ball on the boy respectively while compressing?

A cow is tied at point ‘E’ with a rope of 4 m. E and F are the midpoints of AD and GH respectively. Find the amount of area that can be grazed by the cow in m2.

Question 4A tiny mirror M is fixed on a piece of cardboard placed on a table. The cardboard is illuminated by light from a bulb. The position of eye with respect to position of bulb is shown in the figure as A, B, C and D. In which position mirror will be visible?(a) A(b) B(c) C(d) D

ntIn a circuit L, C and R are connected in series with an alternating voltage source of frequency f. The current leads the voltage by 45^°. The value of C isn

a water †an k is 20 m deep if the water barometer reads 10m at that place them what is pressure at the bottom of the †an k in atmosphere options are: (a)1 atm. (b)2 atm. (c)3 atm. ()4 atm.

u=A\sqrt X /b+X∧2 here u is potential energy and x is dis†an cethen find a/b

In general, does it become colder or warmer as the latitude increases? Give reasons.

15. If the radius and height of a cone both are increased by 10 ℅ ,then the volume of the cone is increased by

draw the ray diagram of spherical mirror

Ramu’s farmland is divided into 9 equal parts. What is the fraction of the land on which he grows potatoes?

Question 1The distance of the point P(2,3) from the x - axis is:(A) 2(B) 3(C) 1(D) 5

Magma coming out of a volcano onto the Earth's surface is called?

24 cells, each having the same e.m.f and 2 ohm internal resistance, are used to draw maximum current through an external resistance of 3 ohm. The cells should be connected: 1) In parallel 2) In series 3) In 4 row each having 6 cells 4) In 6 rows each having 4 cells

Calculate the approximate area of the banana leaf, if each square is of the area 1 cm2. 17

In the hot water heating system there is a cylinderical pipe of length 42m and diameter 5 cm.Find the total radiating surface n the system

How temperature affect speed of sound?

12. If vapor pressure exerts force on the surface of the liquid in downward direction then how vapor pressure will cancel out the atmospheric pressure which is in the same direction during boiling?

What is shown in the given figure?