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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 2651. |
A displacement vector of magnitude 4 makes an angle 30 with the x-axis. It's rectangular components x-y plane are |
| Answer» A displacement vector of magnitude 4 makes an angle 30 with the x-axis. It's rectangular components x-y plane are | |
| 2652. |
The volumes of two cylinders are a : b and their heights are c :d. The ratio of their diameters . |
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Answer» The volumes of two cylinders are a : b and their heights are c :d. The ratio of their diameters |
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| 2653. |
A car travels a distance of 15 km in 20 minutes find the speed of the car in kilometre per hour and metre per second |
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Answer» A car travels a distance of 15 km in 20 minutes find the speed of the car in kilometre per hour and metre per second |
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| 2654. |
all formulaes required for solve all problems of solid state. PDF. |
| Answer» all formulaes required for solve all problems of solid state. PDF. | |
| 2655. |
46. When 6 identical cells of negligible internal resistance are connected in secondary circuit of a potentiometer the balancing length is 1 balancing length becomes 1/3 when some cells are connected wrongly the number of cells connected wrongly are |
| Answer» 46. When 6 identical cells of negligible internal resistance are connected in secondary circuit of a potentiometer the balancing length is 1 balancing length becomes 1/3 when some cells are connected wrongly the number of cells connected wrongly are | |
| 2656. |
Difference between constant acceleration and uniform acceleration motion. Explain with v-t graph and a-t graph. |
| Answer» Difference between constant acceleration and uniform acceleration motion. Explain with v-t graph and a-t graph. | |
| 2657. |
If a boy moves along the boundary of a square field of side 20 m in 40 s. What will be the magnitude of displacement of the boy at the end of 4 minutes 20 seconds? |
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Answer» If a boy moves along the boundary of a square field of side 20 m in 40 s. What will be the magnitude of displacement of the boy at the end of 4 minutes 20 seconds? |
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| 2658. |
Find the moment of inertia of a hollow cylinder of mass m filled with fluid of mass m |
| Answer» Find the moment of inertia of a hollow cylinder of mass m filled with fluid of mass m | |
| 2659. |
Match the given cases of image formation with the position of the object: |
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Answer» Match the given cases of image formation with the position of the object: |
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| 2660. |
what is pressure of gas and what is atmospheri pressur |
| Answer» what is pressure of gas and what is atmospheri pressur | |
| 2661. |
The wheel of a bullock cart has a diameter of 1.4 m. How many rotations will the wheel complete as the cart travels 1.1 km ? |
| Answer» The wheel of a bullock cart has a diameter of 1.4 m. How many rotations will the wheel complete as the cart travels 1.1 km ? | |
| 2662. |
Which mirror is used to concentrate the light on a given spot? |
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Answer» Which mirror is used to concentrate the light on a given spot? |
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| 2663. |
84. What is resonance actually ?? |
| Answer» 84. What is resonance actually ?? | |
| 2664. |
Three rods made of same material and having the same cross-section have been joined as shown in figure. Each rod is of the same length. The ends are kept at 0∘C, 90∘C and 60∘C. The temperature of the junction of the rods will be |
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Answer» Three rods made of same material and having the same cross-section have been joined as shown in figure. Each rod is of the same length. The ends are kept at 0∘C, 90∘C and 60∘C. The temperature of the junction of the rods will be |
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| 2665. |
On the kelvin scale temperature of the body increases by 40 K the increase in temperature of the fahrenheit scale will be |
| Answer» On the kelvin scale temperature of the body increases by 40 K the increase in temperature of the fahrenheit scale will be | |
| 2666. |
A wind power plant does not cause ___, so it is the cleanest source of energy. |
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Answer» A wind power plant does not cause |
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| 2667. |
Sort the following objects in descending order based on the amount of light reflected by them. Sandpaper Coal Polished wood Glazed tile Plane mirror |
Answer» Sort the following objects in descending order based on the amount of light reflected by them.
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| 2668. |
What are the 7 fundamental physical quantities |
| Answer» What are the 7 fundamental physical quantities | |
| 2669. |
Angle between two plane mirrors are 75 degree then number of images formed? Object is placed at angle symmetrical line |
| Answer» Angle between two plane mirrors are 75 degree then number of images formed? Object is placed at angle symmetrical line | |
| 2670. |
If a magnet of pole strength m is cut into four parts along the length then the pole strength of each part becomes |
| Answer» If a magnet of pole strength m is cut into four parts along the length then the pole strength of each part becomes | |
| 2671. |
From the given options select a device that is used to measure temperature. |
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Answer» From the given options select a device that is used to measure temperature. |
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| 2672. |
Under what conditions do solids liquids and gases change their state |
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Answer» Under what conditions do solids liquids and gases change their state |
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| 2673. |
If a rubber ball is taken at the depth of 200 m in a pool, its volume decreases by 0.1%. If the density of the water is 1×103 kg/m3 and g=10 m/s2, then the volume elasticity in n/m2 will be |
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Answer» If a rubber ball is taken at the depth of 200 m in a pool, its volume decreases by 0.1%. If the density of the water is 1×103 kg/m3 and g=10 m/s2, then the volume elasticity in n/m2 will be |
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| 2674. |
Calculate the ratio of average K.E. of one molecule of diatomic (rigid) and diatomic (elastic) at temperature 150C. |
| Answer» Calculate the ratio of average K.E. of one molecule of diatomic (rigid) and diatomic (elastic) at temperature 150C. | |
| 2675. |
Why does the cord of electric heater not glow while the heating element does |
| Answer» Why does the cord of electric heater not glow while the heating element does | |
| 2676. |
What is the difference between rotatory and circulatory motion |
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Answer» What is the difference between rotatory and circulatory motion |
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| 2677. |
A: It is easier to charge a balloon on a dry daythan on a humid day.R: Dryness allows some charge to leak from theballoon. |
| Answer» A: It is easier to charge a balloon on a dry daythan on a humid day.R: Dryness allows some charge to leak from theballoon. | |
| 2678. |
the potential energy of a long spring when stretched by 2 cm is U if the spring is stretched by 8 cm the potential energy stored in it is . |
| Answer» the potential energy of a long spring when stretched by 2 cm is U if the spring is stretched by 8 cm the potential energy stored in it is . | |
| 2679. |
33. A particle is released from a height S. At certain height it's kinetic energy is three times it's potential energy. The height and speed of the particle at that instant are respectively |
| Answer» 33. A particle is released from a height S. At certain height it's kinetic energy is three times it's potential energy. The height and speed of the particle at that instant are respectively | |
| 2680. |
what is formula for calculating ins†an taeous speed |
| Answer» what is formula for calculating ins†an taeous speed | |
| 2681. |
Do you think an electromagnet can be used for separating plastic bags from a garbage heap? Can it be used to separate scrap iron from the heap? Explain.[3 MARKS] |
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Answer» Do you think an electromagnet can be used for separating plastic bags from a garbage heap? Can it be used to separate scrap iron from the heap? Explain.[3 MARKS] |
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| 2682. |
Question 16Which of the following ray diagrams is correct for the ray of light incident on a concave mirror as shown in figure 10.6?(a) Fig. A(b) Fig. B(c) Fig. C(d) Fig. D |
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Answer» Question 16 |
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| 2683. |
Why we take only two dry objects to explain the flow of charge. What will happen if we take a wet object? |
| Answer» Why we take only two dry objects to explain the flow of charge. What will happen if we take a wet object? | |
| 2684. |
An object is said to be moving in uniform motion in a straight line if it is a displacement is equal in equal interval of time . this statement is true?????? |
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Answer» An object is said to be moving in uniform motion in a straight line if it is a displacement is equal in equal interval of time . this statement is true?????? |
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| 2685. |
The strain energy due to bending in the cantilever beam shown in the figure is _____ |
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Answer» The strain energy due to bending in the cantilever beam shown in the figure is _____ |
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| 2686. |
An elephant weighing 40,000 N stands on one foot of area 1000 cm2 whereas a girl weighing 400 N is standing on one 'stiletto' heel of area 1 cm2.(a) Which of the two, elephant or girl, exerts a larger force on the ground and by how much?(b) What pressure is exerted on the ground by the elephant standing on one foot?(c) What pressure is exerted on the ground by the girl standing on one heel?(d) Which of the two exerts larger pressure on the ground: elephant or girl?(e) What is the ratio of pressure exerted by the girl to the pressure exerted by the elephant? |
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Answer» An elephant weighing 40,000 N stands on one foot of area 1000 cm2 whereas a girl weighing 400 N is standing on one 'stiletto' heel of area 1 cm2. (a) Which of the two, elephant or girl, exerts a larger force on the ground and by how much? (b) What pressure is exerted on the ground by the elephant standing on one foot? (c) What pressure is exerted on the ground by the girl standing on one heel? (d) Which of the two exerts larger pressure on the ground: elephant or girl? (e) What is the ratio of pressure exerted by the girl to the pressure exerted by the elephant? |
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| 2687. |
Tap on the vehicle(s) with the highest grip. |
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Answer» Tap on the vehicle(s) with the highest grip. |
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| 2688. |
56.A solid sphere of radius R is pulled by a force T acting at the top of the sphere as shown in the figure. The sphere is in pure rolling. Work done by the force when the centre of mass moves a distance 'd is |
| Answer» 56.A solid sphere of radius R is pulled by a force T acting at the top of the sphere as shown in the figure. The sphere is in pure rolling. Work done by the force when the centre of mass moves a distance 'd is | |
| 2689. |
Which gas having greater volume Real or ideal ? |
| Answer» Which gas having greater volume Real or ideal ? | |
| 2690. |
106.The least distance between a point object and it's real image formed by a convex lens of focal length F is |
| Answer» 106.The least distance between a point object and it's real image formed by a convex lens of focal length F is | |
| 2691. |
In a geyser, ____, giving us warm water. |
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Answer» In a geyser, ____, giving us warm water. |
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| 2692. |
Question 4 (d)An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms:muscular, contact, non-contact, gravity, friction, shape, attraction(d) While the arrow moves towards its target, the forces acting on it are due to ___ and that due to ___of air. |
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Answer» Question 4 (d) An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms: muscular, contact, non-contact, gravity, friction, shape, attraction (d) While the arrow moves towards its target, the forces acting on it are due to |
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| 2693. |
The ways to magnetize a material are |
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Answer» The ways to magnetize a material are |
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| 2694. |
What is anomalous expansion of water? What are its effects? |
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Answer» What is anomalous expansion of water? What are its effects? |
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| 2695. |
81.A solid sphere is at temperature 'T'. The sphere is cut into 2 halves. What is the fraction of energy emitted per second by half sphere to that by complete sphere? (i)1/2 (ii)1/4 (iii)1/16 (iv)3/4 |
| Answer» 81.A solid sphere is at temperature 'T'. The sphere is cut into 2 halves. What is the fraction of energy emitted per second by half sphere to that by complete sphere? (i)1/2 (ii)1/4 (iii)1/16 (iv)3/4 | |
| 2696. |
19.A particle starting from rest is moving with uniform acceleration in a straight line. The percentage increase of the displacement of the particle in 9th second compared to that in the immediate previous second is about what? |
| Answer» 19.A particle starting from rest is moving with uniform acceleration in a straight line. The percentage increase of the displacement of the particle in 9th second compared to that in the immediate previous second is about what? | |
| 2697. |
73 A policeman on duty detects a drop of 10% in the pitch of the horn of motion of car as it crosses him. If the velocity of sound is 330m/s find the speed of the car. |
| Answer» 73 A policeman on duty detects a drop of 10% in the pitch of the horn of motion of car as it crosses him. If the velocity of sound is 330m/s find the speed of the car. | |
| 2698. |
Light from the constellation Virgo is observed to increase in wavelength by 0.4 %. With respect to Earth the constellation is : (a) Moving away with velocity 1.2×10^6 ms^{-1} (b) Coming closer with velocity 1.2 × 10^6 ms^{-1} (c) Moving away wirh velocity 4×10^6 MS^{-1} (d) Coming closer with velocitye 4×10^6 ms^{-1}. |
| Answer» Light from the constellation Virgo is observed to increase in wavelength by 0.4 %. With respect to Earth the constellation is : (a) Moving away with velocity 1.2×10^6 ms^{-1} (b) Coming closer with velocity 1.2 × 10^6 ms^{-1} (c) Moving away wirh velocity 4×10^6 MS^{-1} (d) Coming closer with velocitye 4×10^6 ms^{-1}. | |
| 2699. |
If humidity of a place is less then |
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Answer» If humidity of a place is less then |
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| 2700. |
While inflating a balloon, the entire air that was blown into the balloon escapes when its mouth is left open. This is because: |
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Answer» While inflating a balloon, the entire air that was blown into the balloon escapes when its mouth is left open. This is because: |
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