13232 + Interview Questions in Physics Page 265 InterviewSolution

13201.	A nucleus AZX going through a β+ decay will end up taking what configuration?
Answer» A nucleus $_{Z}^{A} X$ going through a $β^{+}$ decay will end up taking what configuration?

Discussion

13202.	The given graph shows the displacement versus time relation for a disturbance travelling with a velocity of 1500 m s−1. Calculate the wavelength of the disturbance.
Answer» The given graph shows the displacement versus time relation for a disturbance travelling with a velocity of $1500 m s^{- 1}$ . Calculate the wavelength of the disturbance.

Discussion

13203.	a scale is calibrated into divisions of 0.5mm each . If 20divisions of this scale divided into 25 equal parts of a vernier , calculate the least count .
Answer» a scale is calibrated into divisions of 0.5mm each . If 20divisions of this scale divided into 25 equal parts of a vernier , calculate the least count .

Discussion

13204.	Why acceleration related with velocity not with speed ?
Answer» Why acceleration related with velocity not with speed ?

Discussion

13205.	(a) What do you understand by the term "transformation of energy" ? Explain with an example. (b) Explain the transformation of energy in the following cases : (i) A ball thrown upwards. (ii) A stone dropped from the roof of a building.
Answer» (a) What do you understand by the term "transformation of energy" ? Explain with an example. (b) Explain the transformation of energy in the following cases : (i) A ball thrown upwards. (ii) A stone dropped from the roof of a building.

13205.

(a) What do you understand by the term "transformation of energy" ? Explain with an example. (b) Explain the transformation of energy in the following cases : (i) A ball thrown upwards. (ii) A stone dropped from the roof of a building.

Answer»

(a) What do you understand by the term "transformation of energy" ? Explain with an example.

(b) Explain the transformation of energy in the following cases :

(i) A ball thrown upwards.

(ii) A stone dropped from the roof of a building.

Discussion

13206.	What is the value of surface tension of water at critical temperature?
Answer» What is the value of surface tension of water at critical temperature?

Discussion

13207.	The mechanical advantage of a class II levers is always more than 1, because
Answer» The mechanical advantage of a class II levers is always more than 1, because

Discussion

13208.	Question 12 A boy is moving on a straight road against a frictional force of 5 N. After travelling a distance of 1.5 km he forgot the correct path at a round about of radius 100 m. However, he moves on the circular path for one and a half cycle and then he moves forward up to 2.0 km. Calculate the work done by him.
Answer» Question 12 A boy is moving on a straight road against a frictional force of 5 N. After travelling a distance of 1.5 km he forgot the correct path at a round about of radius 100 m. However, he moves on the circular path for one and a half cycle and then he moves forward up to 2.0 km. Calculate the work done by him.

Discussion

13209.	Study the following scenarios and identify what type of inertia tends to resist the change: 1. When the bus suddenly starts, the bus passenger on the bus tends to fall backwards. 2. When a passenger jumps out of moving the bus, he falls down. 3. A cyclist in a leveller road does not come to rest immediately even if he stops pedalling.
Answer» Study the following scenarios and identify what type of inertia tends to resist the change: 1. When the bus suddenly starts, the bus passenger on the bus tends to fall backwards. 2. When a passenger jumps out of moving the bus, he falls down. 3. A cyclist in a leveller road does not come to rest immediately even if he stops pedalling.

13209.

Study the following scenarios and identify what type of inertia tends to resist the change: 1. When the bus suddenly starts, the bus passenger on the bus tends to fall backwards. 2. When a passenger jumps out of moving the bus, he falls down. 3. A cyclist in a leveller road does not come to rest immediately even if he stops pedalling.

Answer»

Study the following scenarios and identify what type of inertia tends to resist the change:

1. When the bus suddenly starts, the bus passenger on the bus tends to fall backwards.
2. When a passenger jumps out of moving the bus, he falls down.
3. A cyclist in a leveller road does not come to rest immediately even if he stops pedalling.

Discussion

13210.	The different types of reflecting telescope are
Answer» The different types of reflecting telescope are

Discussion

13211.	Find the scalar and vector from the following speed, distance, current, time, velocity, pressure , work done, Momentum and acceleration
Answer» Find the scalar and vector from the following speed, distance, current, time, velocity, pressure , work done, Momentum and acceleration

Discussion

13212.	A body of volume 50 centimetre cube is completely immersed in water. Find the force of buoyancy on it.
Answer» A body of volume 50 centimetre cube is completely immersed in water. Find the force of buoyancy on it.

Discussion

13213.	Describe the effect of force acting upon an object when Air resistance is greater than the force of gravity?
Answer» Describe the effect of force acting upon an object when Air resistance is greater than the force of gravity?

13213.

Describe the effect of force acting upon an object when Air resistance is greater than the force of gravity?

Answer»

Describe the effect of force acting upon an object when

Air resistance is greater than the force of gravity?

Discussion

13214.	If ammeter shows electric current of magnitude 10 A . Then what would be the reading of voltmeter placed across the given resistor?
Answer» If ammeter shows electric current of magnitude $10 A$ . Then what would be the reading of voltmeter placed across the given resistor?

Discussion

13215.	A hockey player pushes the ball on the ground. It comes to rest after travelling a certain distance because:
Answer» A hockey player pushes the ball on the ground. It comes to rest after travelling a certain distance because:

Discussion

13216.	Question 15 (a) State the rule to determine the direction of a (i) magnetic field produced around a straight conductor-carrying current.
Answer» Question 15 (a) State the rule to determine the direction of a (i) magnetic field produced around a straight conductor-carrying current.

Discussion

13217.	Why does a person fall when he jumps out form a moving train?
Answer» Why does a person fall when he jumps out form a moving train?

Discussion

13218.	The correct relation between heat produced, H and electric current, I flowing is
Answer» The correct relation between heat produced, $H$ and electric current, $I$ flowing is

Discussion

13219.	Assume the distance between sun and mirror is infinity and the sun is much above the principal axis. Where will the image of the sun be formed?
Answer» Assume the distance between sun and mirror is infinity and the sun is much above the principal axis. Where will the image of the sun be formed?

13219.

Assume the distance between sun and mirror is infinity and the sun is much above the principal axis. Where will the image of the sun be formed?

Answer»

Assume the distance between sun and mirror is infinity and the sun is much above the principal axis. Where will the image of the sun be formed?

Discussion

13220.	Find the height of the lamp post by using the concept of similar triangles ?
Answer» Find the height of the lamp post by using the concept of similar triangles ?

Discussion

13221.	When a 12 V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. Find the value of the resistance of the resistor.
Answer» When a 12 V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. Find the value of the resistance of the resistor.

Discussion

13222.	A piece of stone is thrown vertically upwards. It reaches the maximum height in 3 seconds. If the acceleration of the stone be 9.8m/s2 directed towards the ground, calculate the initial velocity of the stone with which it is thrown upwards.
Answer» A piece of stone is thrown vertically upwards. It reaches the maximum height in 3 seconds. If the acceleration of the stone be $9.8 m / s^{2}$ directed towards the ground, calculate the initial velocity of the stone with which it is thrown upwards.

Discussion

13223.	A 60 kg skydiver moving at terminal speed 40 m in 2 seconds. The sky diver is spending a power of ___ KW.
Answer» A 60 kg skydiver moving at terminal speed 40 m in 2 seconds. The sky diver is spending a power of ___ KW.

Discussion

13224.	An insect moves along the sides of a wall of dimension 12m×5m, starting from one corner and reaches the diagonally opposite corner. If the insect takes 2s for its motion, then find the ratio of average speed to average velocity of insect.
Answer» An insect moves along the sides of a wall of dimension $12 m \times 5 m$ , starting from one corner and reaches the diagonally opposite corner. If the insect takes $2 s$ for its motion, then find the ratio of average speed to average velocity of insect.

Discussion

Explore topic-wise InterviewSolutions in .

A nucleus AZX going through a β+ decay will end up taking what configuration?

The given graph shows the displacement versus time relation for a disturbance travelling with a velocity of 1500 m s−1. Calculate the wavelength of the disturbance.

a scale is calibrated into divisions of 0.5mm each . If 20divisions of this scale divided into 25 equal parts of a vernier , calculate the least count .

Why acceleration related with velocity not with speed ?

(a) What do you understand by the term "transformation of energy" ? Explain with an example. (b) Explain the transformation of energy in the following cases : (i) A ball thrown upwards. (ii) A stone dropped from the roof of a building.

What is the value of surface tension of water at critical temperature?

The mechanical advantage of a class II levers is always more than 1, because

The different types of reflecting telescope are

Find the scalar and vector from the following speed, distance, current, time, velocity, pressure , work done, Momentum and acceleration

A body of volume 50 centimetre cube is completely immersed in water. Find the force of buoyancy on it.

Describe the effect of force acting upon an object when Air resistance is greater than the force of gravity?

If ammeter shows electric current of magnitude 10 A . Then what would be the reading of voltmeter placed across the given resistor?

A hockey player pushes the ball on the ground. It comes to rest after travelling a certain distance because:

Question 15 (a) State the rule to determine the direction of a (i) magnetic field produced around a straight conductor-carrying current.

Why does a person fall when he jumps out form a moving train?

The correct relation between heat produced, H and electric current, I flowing is

Assume the distance between sun and mirror is infinity and the sun is much above the principal axis. Where will the image of the sun be formed?

Find the height of the lamp post by using the concept of similar triangles ?

When a 12 V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. Find the value of the resistance of the resistor.

A piece of stone is thrown vertically upwards. It reaches the maximum height in 3 seconds. If the acceleration of the stone be 9.8m/s2 directed towards the ground, calculate the initial velocity of the stone with which it is thrown upwards.

A 60 kg skydiver moving at terminal speed 40 m in 2 seconds. The sky diver is spending a power of ___ KW.

An insect moves along the sides of a wall of dimension 12m×5m, starting from one corner and reaches the diagonally opposite corner. If the insect takes 2s for its motion, then find the ratio of average speed to average velocity of insect.