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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.
| 3101. |
A body is moving in a straight line. Its displacement is given by x= A + Bt- Ct²where A, B, C are positive constants and t is the time. Which of the following holds good for the body?(1), Its acceleration decreases with time (2)Its speed first decreases becomes zero and then increases(3) It executes uniform motion(4) Its speed remains constant |
| Answer» A body is moving in a straight line. Its displacement is given by x= A + Bt- Ct²where A, B, C are positive constants and t is the time. Which of the following holds good for the body?(1), Its acceleration decreases with time (2)Its speed first decreases becomes zero and then increases(3) It executes uniform motion(4) Its speed remains constant | |
| 3102. |
How many cubes of side 5 cm can be packed in a box of 30 cm x 25 cm x 20 cm? |
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Answer» How many cubes of side 5 cm can be packed in a box of 30 cm x 25 cm x 20 cm? |
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| 3103. |
N-m/sec is unit of ?a.workb.pressurec.powerd.energy |
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Answer» N-m/sec is unit of ? a.work b.pressure c.power d.energy |
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| 3104. |
A liquid drop of mass m and radius r is falling from a great height. its velocity is proportional |
| Answer» A liquid drop of mass m and radius r is falling from a great height. its velocity is proportional | |
| 3105. |
Explain why a wide steel belt is provided over the army tank |
| Answer» Explain why a wide steel belt is provided over the army tank | |
| 3106. |
An 8 m long simply- supported elastic beam of rectangular cross-section (100 mm x 200 mm) is subjected to a uniformly distributed load of 10 kN/m over its entire span. The maximum principal stress(in MPa, up to two decimal places) at a point located at the extreme compression edge of a cross-section and at 2 m from the support is 90 |
Answer» An 8 m long simply- supported elastic beam of rectangular cross-section (100 mm x 200 mm) is subjected to a uniformly distributed load of 10 kN/m over its entire span. The maximum principal stress(in MPa, up to two decimal places) at a point located at the extreme compression edge of a cross-section and at 2 m from the support is
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| 3107. |
Differentiate between density and relative density. |
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Answer» Differentiate between density and relative density. |
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| 3108. |
The dis†an ce travelled by a body in nth secondis guven by expression (2+3n).Find the initual velocity and acceleration.Also find the final velocity at the end of 2 second |
| Answer» The dis†an ce travelled by a body in nth secondis guven by expression (2+3n).Find the initual velocity and acceleration.Also find the final velocity at the end of 2 second | |
| 3109. |
When a force of 5 N acts on a surface,it produces a pressure of 500 Pa.The area of surface then must be : (a) 10cm2 (b) 50cm2 (c) 100cm2 (d) 0.01cm2 |
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Answer» When a force of 5 N acts on a surface,it produces a pressure of 500 Pa.The area of surface then must be : |
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| 3110. |
How will you determine the density of an irregular solid |
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Answer» How will you determine the density of an irregular solid |
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| 3111. |
74. The speed of sound is v. if a reflector moves towards a stationary source emitting waves of frequency f with speed u,then the wavelength of reflected wave is |
| Answer» 74. The speed of sound is v. if a reflector moves towards a stationary source emitting waves of frequency f with speed u,then the wavelength of reflected wave is | |
| 3112. |
A musical instrument is producing a continuous note. This note cannot be heard by a person having a normal hearing range. This note must then be. passing through : (a) water (b) wax (c) vacuum (d) empty vessel |
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Answer» A musical instrument is producing a continuous note. This note cannot be heard by a person having a normal hearing range. This note must then be. passing through : (a) water (b) wax (c) vacuum (d) empty vessel |
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| 3113. |
A block A of mass m is placed on a horizontal surface. Another block B of same mass is kept on A And connected to the wall with the help of spring of spring constant k. The coefficient of friction between A and B is u . The blocks move together performing simple harmonic motion of amplitude a. Tge maximum value of frictional force between A and B is |
| Answer» A block A of mass m is placed on a horizontal surface. Another block B of same mass is kept on A And connected to the wall with the help of spring of spring constant k. The coefficient of friction between A and B is u . The blocks move together performing simple harmonic motion of amplitude a. Tge maximum value of frictional force between A and B is | |
| 3114. |
Oxygen and hydrogen are at the same temperature T. The ratio of the mean kinetic energy of oxygen molecules to that of the hydrogen molecules will be :-(1)16 : 1 (2)1 : 1 (3)4 : 1 (4)1 : 4 |
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Answer» Oxygen and hydrogen are at the same temperature T. The ratio of the mean kinetic energy of oxygen molecules to that of the hydrogen molecules will be :- (1) 16 : 1 (2) 1 : 1 (3) 4 : 1 (4) 1 : 4 |
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| 3115. |
Which of the following is an unit of magnetic field intensity? |
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Answer» Which of the following is an unit of magnetic field intensity? |
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| 3116. |
If the loudness of sound exceeds, it can cause harm to the human ear. |
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Answer» If the loudness of sound exceeds |
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| 3117. |
What do you understand by electricity at rest |
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Answer» What do you understand by electricity at rest |
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| 3118. |
what are the newtons laws of motion |
| Answer» what are the newtons laws of motion | |
| 3119. |
The space mean speed (kmph) & density (vehicles/km) of a traffic stream are linearly related. The free flow speed and Jam density are 120 kmph and 150 vehicles/km respectively. The traffic flow (in vehicles/hr upto one decimal place) corresponding to 60 kmph is _________ 4500 |
Answer» The space mean speed (kmph) & density (vehicles/km) of a traffic stream are linearly related. The free flow speed and Jam density are 120 kmph and 150 vehicles/km respectively. The traffic flow (in vehicles/hr upto one decimal place) corresponding to 60 kmph is _________
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| 3120. |
Question 1Sound can travel through(a) gases only(b) solids only(c) liquids only(d) solids, liquids and gases. |
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Answer» Question 1 |
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| 3121. |
The m rows each containing n cells in series are joined in parallel. Maximum current is taken from this connection across an external resistance of 3 ohm. If the total no. of cells used = 24 and internal resistance of each cell is 0.5 ohm find the value of m and n. |
| Answer» The m rows each containing n cells in series are joined in parallel. Maximum current is taken from this connection across an external resistance of 3 ohm. If the total no. of cells used = 24 and internal resistance of each cell is 0.5 ohm find the value of m and n. | |
| 3122. |
Three transparent slabs are arranged one over another as shown in the figure. The refractive indices and the thickness are as given in the figure. An object is seen through this combination with nearly perpendicular light. Find the equivalent refractive index of the system which will allow the image to be formed at the same place. |
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Answer» Three transparent slabs are arranged one over another as shown in the figure. The refractive indices and the thickness are as given in the figure. An object is seen through this combination with nearly perpendicular light. Find the equivalent refractive index of the system which will allow the image to be formed at the same place. |
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| 3123. |
Gauss law due to a spherical conductor. |
| Answer» Gauss law due to a spherical conductor. | |
| 3124. |
Explain the concept of persistence of vision ? |
| Answer» Explain the concept of persistence of vision ? | |
| 3125. |
Parul plays a note of a frequency 4 kHz on her synthesiser. She knows the speed of sound is 340 m/s in air. What is the wavelength of the required note? |
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Answer» Parul plays a note of a frequency 4 kHz on her synthesiser. She knows the speed of sound is 340 m/s in air. What is the wavelength of the required note? |
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| 3126. |
When the temperature of a metal wire is increased from 0∘C to 10∘C, its length increased by 0.02%. The percentage change in its mass density will be closest to |
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Answer» When the temperature of a metal wire is increased from 0∘C to 10∘C, its length increased by 0.02%. The percentage change in its mass density will be closest to |
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| 3127. |
The work done in rotating an electric dipole of dipole moment P in an uniform electric field E through an angle θ from the stable equilibrium isOptions: –PE cosθ PE cosθ PE(1 – cosθ) PE(1 + cosθ) |
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Answer» The work done in rotating an electric dipole of dipole moment P in an uniform electric field E through an angle θ from the stable equilibrium is Options: –PE cosθ PE cosθ PE(1 – cosθ) PE(1 + cosθ) |
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| 3128. |
For a prestressed cantilever beam of size 200mm×400mm with prestressing force of 500kN. The beam is subjected to uniformly distributed load (inclusive of self weight) of 4kN/m. The span of beam is 6m. The distance (in mm, rounded off to two decimal places) of the cable from the soffit of the beam at the fixed end for no tensile stress in during service conditions is _______.277 |
Answer» For a prestressed cantilever beam of size 200mm×400mm with prestressing force of 500kN. The beam is subjected to uniformly distributed load (inclusive of self weight) of 4kN/m. The span of beam is 6m. The distance (in mm, rounded off to two decimal places) of the cable from the soffit of the beam at the fixed end for no tensile stress in during service conditions is _______.
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| 3129. |
A man sitting in a train in motion is facing opposite to the engine. He tosses a coin up, the coin falls in front of him. The train is_______(1) Moving backward with uniform speed(2) Moving backward with acceleration(3) Moving forward with uniform speed(4) Moving forward with acceleration |
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Answer» A man sitting in a train in motion is facing opposite to the engine. He tosses a coin up, the coin falls in front of him. The train is_______ (1) Moving backward with uniform speed (2) Moving backward with acceleration (3) Moving forward with uniform speed (4) Moving forward with acceleration |
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| 3130. |
Two bodies of masses m1 and m2 are connected by a light string which passes over a frictionless ,massseless pulley if the pulley is moving upward with uniform acceleration g/2 then tension in the string will be |
| Answer» Two bodies of masses m1 and m2 are connected by a light string which passes over a frictionless ,massseless pulley if the pulley is moving upward with uniform acceleration g/2 then tension in the string will be | |
| 3131. |
Define Tension force |
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Answer» Define Tension force |
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| 3132. |
Two persons P and Q are flying in a helicopter horizontally ata cons†an speed all ofo sudden P falls down during the fall of P at any ins†an t Q locates P |
| Answer» Two persons P and Q are flying in a helicopter horizontally ata cons†an speed all ofo sudden P falls down during the fall of P at any ins†an t Q locates P | |
| 3133. |
a ring of radius 'r' has a charge q and a charge '-q' is placed on its surface. '-q' is to be taken on the surface of another ring of radius r and charge 4q placed at a distance 9r from first ring. find velocity required to reach the other surface. |
| Answer» a ring of radius 'r' has a charge q and a charge '-q' is placed on its surface. '-q' is to be taken on the surface of another ring of radius r and charge 4q placed at a distance 9r from first ring. find velocity required to reach the other surface. | |
| 3134. |
What parts of speech are the underlined words? The boat had sunk by the time the rescue team arrived. I looked into the sunken eyes of the beggar who was at my doorsteps. |
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Answer» What parts of speech are the underlined words? The boat had sunk by the time the rescue team arrived. I looked into the sunken eyes of the beggar who was at my doorsteps. |
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| 3135. |
A resonance tube of length 120 cm have frequency of 340Hz. The velocity of sound in air is 340 m/s. Calculate the minimum level of water for which resonance can be obtained in the tube? |
| Answer» A resonance tube of length 120 cm have frequency of 340Hz. The velocity of sound in air is 340 m/s. Calculate the minimum level of water for which resonance can be obtained in the tube? | |
| 3136. |
Pls explain how to solve this question a ray of light is incident at 60degree on glass Air interface. Then light ray Will (mu =√2,mu=1) |
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Answer» Pls explain how to solve this question a ray of light is incident at 60degree on glass Air interface. Then light ray Will (mu =√2,mu=1) |
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| 3137. |
111.A uniform metre scale is balanced on a fixed semi circular cylinder of radius 30 cm as shown in figure time period of oscillation is |
| Answer» 111.A uniform metre scale is balanced on a fixed semi circular cylinder of radius 30 cm as shown in figure time period of oscillation is | |
| 3138. |
Is a Force required to keep a body moving ? |
| Answer» Is a Force required to keep a body moving ? | |
| 3139. |
Calculate the pressure exerted on a surface of 0.5m2 by a thrust of 100 kg. |
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Answer» Calculate the pressure exerted on a surface of 0.5m2 by a thrust of 100 kg. |
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| 3140. |
three particles have charges +20mc each . they are fixed at the corners of an equilateral triangle of side 0.5m. the force on each of particle has magnitude |
| Answer» three particles have charges +20mc each . they are fixed at the corners of an equilateral triangle of side 0.5m. the force on each of particle has magnitude | |
| 3141. |
What are the factors on which speed of sound in any medium depends? |
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Answer» What are the factors on which speed of sound in any medium depends? |
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| 3142. |
The pressure exerted by the atmosphere is: |
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Answer» The pressure exerted by the atmosphere is: |
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| 3143. |
While doing an experiment to measure the temperature at which water boils, Ram keeps the laboratory thermometer completely immersed in water without touching the surface or bottom of the beaker. Shyam on the other hand does the same experiment with the thermometer touching the bottom of the beaker. Who is more likely to get an accurate reading? |
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Answer» While doing an experiment to measure the temperature at which water boils, Ram keeps the laboratory thermometer completely immersed in water without touching the surface or bottom of the beaker. Shyam on the other hand does the same experiment with the thermometer touching the bottom of the beaker. Who is more likely to get an accurate reading? |
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| 3144. |
The approximate length of vocal cords in men is ___. |
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Answer» The approximate length of vocal cords in men is ___. |
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| 3145. |
21.The time period of Earth taken as t and it's distance r. What will be the distance of a certain planet from sun whoes time period is 64 times of the earth?? |
| Answer» 21.The time period of Earth taken as t and it's distance r. What will be the distance of a certain planet from sun whoes time period is 64 times of the earth?? | |
| 3146. |
Which of the following forces is necessary for us to walk on the ground? |
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Answer» Which of the following forces is necessary for us to walk on the ground? |
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| 3147. |
What can be said about the transformation of wheels of a moving car? |
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Answer» What can be said about the transformation of wheels of a moving car? |
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| 3148. |
What are irrational numbers ?what are it's applications in our daily lives? |
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Answer» What are irrational numbers ?what are it's applications in our daily lives? |
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| 3149. |
a body moving with uniform retardation covers3km before its speed is reduced to half of its initial value.it comes to rest in another dis†an ce? |
| Answer» a body moving with uniform retardation covers3km before its speed is reduced to half of its initial value.it comes to rest in another dis†an ce? | |
| 3150. |
Why do electricians wear rubber gloves? |
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Answer» Why do electricians wear rubber gloves? |
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