InterviewSolution
Saved Bookmarks
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.
| 1501. |
The device which uses ultrasonic sound waves to measure the distance, direction, and speed of underwater objects is: |
|
Answer» The device which uses ultrasonic sound waves to measure the distance, direction, and speed of underwater objects is: |
|
| 1502. |
Why CFL is considered better than filament based electric bulb? |
|
Answer» Why CFL is considered better than filament based electric bulb? |
|
| 1503. |
Light shows many properties like those of sound. A star which emits a line of wavelength 5000 ∘A is receding from you in the line of sight with a velocity (1100)th of speed of light. The wavelength of this line as observed by you will be |
|
Answer» Light shows many properties like those of sound. A star which emits a line of wavelength 5000 ∘A is receding from you in the line of sight with a velocity (1100)th of speed of light. The wavelength of this line as observed by you will be |
|
| 1504. |
Explain the differences between regular and irregular reflection light. |
| Answer» Explain the differences between regular and irregular reflection light. | |
| 1505. |
Which of the following represents voltage?workdone / (current x time)work done x charge(work done x time) / currentwork done x charge x time |
|
Answer» Which of the following represents voltage? workdone / (current x time) work done x charge (work done x time) / current work done x charge x time |
|
| 1506. |
Each square metre of sun’s surface radiates energy at the rate of 6.27×107 Wm−2. Assuming that Stefan’s law applies to the radiation, the temperature of sun’s surface is (Stefan’s constant σ=5.7×107 Wm−2K−4) |
|
Answer» Each square metre of sun’s surface radiates energy at the rate of 6.27×107 Wm−2. Assuming that Stefan’s law applies to the radiation, the temperature of sun’s surface is (Stefan’s constant σ=5.7×107 Wm−2K−4) |
|
| 1507. |
Consider a planet moving around a star in an elliptical orbit with period T.The area of the elliotical orbit is proportional to |
| Answer» Consider a planet moving around a star in an elliptical orbit with period T.The area of the elliotical orbit is proportional to | |
| 1508. |
Draw a diagram to show the wave pattem of high pitch note and a low pitch note, but of the same loudness. |
|
Answer» Draw a diagram to show the wave pattem of high pitch note and a low pitch note, but of the same loudness. |
|
| 1509. |
Describe an activity to show that colour of white light spilitted by glass prism can be recombined to get white light by another identical glass prism .also draw ray diagram to show the recombination o spectrum of white light |
| Answer» Describe an activity to show that colour of white light spilitted by glass prism can be recombined to get white light by another identical glass prism .also draw ray diagram to show the recombination o spectrum of white light | |
| 1510. |
36 kmph = |
|
Answer» 36 kmph = |
|
| 1511. |
The area of a right triangle of height 15 m and base 20 m is |
|
Answer» The area of a right triangle of height 15 m and base 20 m is |
|
| 1512. |
Identify the countable noun in the sentence. After the iron is out of the fire, bellows are used to blow air on it to cool it down. |
|
Answer» Identify the countable noun in the sentence. After the iron is out of the fire, bellows are used to blow air on it to cool it down. |
|
| 1513. |
If at STP , velocity of sound in a gas (gamma= 1.5) is 600 m/s , the r.m.s velocity of the gas molecules at STP will be(1) 400m/s. (2) 600 m/s (3) 600√2m/s. (4) 300√2m/s |
|
Answer» If at STP , velocity of sound in a gas (gamma= 1.5) is 600 m/s , the r.m.s velocity of the gas molecules at STP will be (1) 400m/s. (2) 600 m/s (3) 600√2m/s. (4) 300√2m/s |
|
| 1514. |
A person of mass Mis sitting on a swing of length L with angular amplitude θ 0 The person stands when theswing passes through mean position. If the centre of mass moves up by distance I\{I≤≤≤ L\}, then(A) Work done by man, is Mgl(C) Kinetic Energy of man increases(B) Work done by man, is Mgl (1+\varnothing square)(D) Kinetic energy of man remain constant |
| Answer» A person of mass Mis sitting on a swing of length L with angular amplitude θ 0 The person stands when theswing passes through mean position. If the centre of mass moves up by distance I\{I≤≤≤ L\}, then(A) Work done by man, is Mgl(C) Kinetic Energy of man increases(B) Work done by man, is Mgl (1+\varnothing square)(D) Kinetic energy of man remain constant | |
| 1515. |
An iron ball at 40°C is dropped in a mug containing water at40°C. The heat will(a) flow from iron ball to water.(b) not flow from iron ball to water or from water to iron ball.(c) flow from water to iron ball.(d) increase the temperature of both. |
|
Answer»
|
|
| 1516. |
A capacitor of capacitance C is initially charged to a potential difference of V volt now it is connected to a battery of towards EMF is opposite polarity the ratio of heat generated to the final energy stored in the capacitor will be |
| Answer» A capacitor of capacitance C is initially charged to a potential difference of V volt now it is connected to a battery of towards EMF is opposite polarity the ratio of heat generated to the final energy stored in the capacitor will be | |
| 1517. |
A body having 10 kg mass is traveling with a certain velocity and has 20 kgms−1 momentum. Calculate its kinetic energy (in Joule)? 20 |
Answer» A body having 10 kg mass is traveling with a certain velocity and has 20 kgms−1 momentum. Calculate its kinetic energy (in Joule)?
|
|
| 1518. |
If distance = 5000mthen by a*10^b 5 * 10^3 a=5 ("a" not < or > 5 but = 5) then magnitude of order is 3 or 4 |
|
Answer» If distance = 5000m then by a*10^b 5 * 10^3 a=5 ("a" not < or > 5 but = 5) then magnitude of order is 3 or 4 |
|
| 1519. |
Question 1 Look at the activities listed below. Reason out whether or not work is done in the light of your understanding of the term 'work'. • Suma is swimming in a pond. • A donkey is carrying a load on its back. • A wind mill is lifting water from a well. • A green plant is carrying out photosynthesis. • An engine is pulling a train. • Food grains are getting dried in the sun. • A sailboat is moving due to wind energy. |
|
Answer» Question 1 Look at the activities listed below. Reason out whether or not work is done in the light of your understanding of the term 'work'. • Suma is swimming in a pond. • A donkey is carrying a load on its back. • A wind mill is lifting water from a well. • A green plant is carrying out photosynthesis. • An engine is pulling a train. • Food grains are getting dried in the sun. • A sailboat is moving due to wind energy. |
|
| 1520. |
Why convection is not possible in solids? |
|
Answer» Why convection is not possible in solids? |
|
| 1521. |
Match the following. Group ‘A’ Group ‘B’ (a) Good conductor 1. Convection current (b) Bad conductor 2. Conduction (c) Vibration 3. Glass (d) A rotating paper lantern 4. Copper |
||||||||||||||||||||
|
Answer» Match the following.
|
|||||||||||||||||||||
| 1522. |
Potential difference is applied across the ends of a conductor. Choose the correct statement. |
|
Answer» Potential difference is applied across the ends of a conductor. Choose the correct statement. |
|
| 1523. |
Tell the odd one out. Give proper explanation.a. Fuse wire, bad conductor, rubber gloves, generator.b. Voltmeter, Ammeter, galvanometer, thermometer.c. Loud speaker, microphone, electric motor, magnet. |
|
Answer» Tell the odd one out. Give proper explanation. a. Fuse wire, bad conductor, rubber gloves, generator. b. Voltmeter, Ammeter, galvanometer, thermometer. c. Loud speaker, microphone, electric motor, magnet. |
|
| 1524. |
A capacitor of capacitance C is initially charged with a potential difference of V. Now it is connected to a battery of 2v with opposite polarity. The heat developed is |
| Answer» A capacitor of capacitance C is initially charged with a potential difference of V. Now it is connected to a battery of 2v with opposite polarity. The heat developed is | |
| 1525. |
Question 2How are the wavelength and frequency of a sound wave related to its speed? |
|
Answer» Question 2 How are the wavelength and frequency of a sound wave related to its speed? |
|
| 1526. |
The odometer of a vehicle has an initial reading of 22256 km. After the trip, it shows a reading of 22356 km. If the time taken for the trip is 5 hours, find the average speed of the vehicle. |
|
Answer» The odometer of a vehicle has an initial reading of 22256 km. After the trip, it shows a reading of 22356 km. If the time taken for the trip is 5 hours, find the average speed of the vehicle. |
|
| 1527. |
The warmth of room heater is because of radiation or convection?? |
|
Answer» The warmth of room heater is because of radiation or convection?? |
|
| 1528. |
A transit time ultrasonic flowmeter uses a pair of transmitter receiver placed at angle of 45o to the fluid flow axis in a pipe of 0.5 m internal diameter. The velocity of ultrasound in fluid is 1000 m/s. If the minimum change in fluid velocity is found to be 0.5 m/s then the maximum clock frequency that can be used to trigger the crystal in MHz is? 2 |
Answer» A transit time ultrasonic flowmeter uses a pair of transmitter receiver placed at angle of 45o to the fluid flow axis in a pipe of 0.5 m internal diameter. The velocity of ultrasound in fluid is 1000 m/s. If the minimum change in fluid velocity is found to be 0.5 m/s then the maximum clock frequency that can be used to trigger the crystal in MHz is?
|
|
| 1529. |
5×5×5×5×5×5 in exponential form is . |
|
Answer» 5×5×5×5×5×5 in exponential form is |
|
| 1530. |
Consider a car moving on a straight road with a speed of 100 m/s . The dis†an ce at which car can be stopped is \{coefficient of kinetic friction is 0.5\} |
| Answer» Consider a car moving on a straight road with a speed of 100 m/s . The dis†an ce at which car can be stopped is \{coefficient of kinetic friction is 0.5\} | |
| 1531. |
Question 9 Which of the statements given below is correct? (i) In winter the winds flow from the land to the ocean. (ii) In summer the winds flow from the land towards the ocean. (iii) A cyclone is formed by a very high-pressure system with very high-speed winds revolving around it. (iv) The coastline of India is not vulnerable to cyclones. |
|
Answer» Question 9 |
|
| 1532. |
Two trains with speeds of 40 Km/hr and 50 Km/hr are coming from the opposite directions in two tracks. What is their relative speed in m/s |
|
Answer» Two trains with speeds of 40 Km/hr and 50 Km/hr are coming from the opposite directions in two tracks. What is their relative speed in m/s |
|
| 1533. |
Does the boiling point of a substance change as we go above sea-level? |
|
Answer» Does the boiling point of a substance change as we go above sea-level? |
|
| 1534. |
Question 4In a hydro power plant(a) Potential energy possessed by stored water is converted into electricity.(b) Kinetic energy possessed by stored water is converted into potential energy. (c) Electricity is extracted from water.(d) Water is converted into steam to produce electricity. |
|
Answer» Question 4 |
|
| 1535. |
What is the total spin value of Fe^{+2} ? |
| Answer» What is the total spin value of Fe^{+2} ? | |
| 1536. |
During the process of photosynthesis in plants, light energy from the Sun changes to ____ energy in the plant. |
|
Answer» During the process of photosynthesis in plants, light energy from the Sun changes to ____ energy in the plant. |
|
| 1537. |
A point which has velocities represented by 7, 8 and 13 is at rest. Find the angle between the direction of two smaller velocities |
| Answer» A point which has velocities represented by 7, 8 and 13 is at rest. Find the angle between the direction of two smaller velocities | |
| 1538. |
37.A particle is projected from ground with speed 80 metre per second at an angle 30 degree with horizontal from ground the magnitude of average velocity of particle in time interval t=2s to t=6s is |
| Answer» 37.A particle is projected from ground with speed 80 metre per second at an angle 30 degree with horizontal from ground the magnitude of average velocity of particle in time interval t=2s to t=6s is | |
| 1539. |
94. the position of a particle is given as y=5cos(10t+15) m. The average velocity of the particle from t=0 to t=3 sec |
| Answer» 94. the position of a particle is given as y=5cos(10t+15) m. The average velocity of the particle from t=0 to t=3 sec | |
| 1540. |
Which of the following is not a basic source for power generation? |
|
Answer» Which of the following is not a basic source for power generation? |
|
| 1541. |
5 What is chillate effect and describe chillate ring |
| Answer» 5 What is chillate effect and describe chillate ring | |
| 1542. |
Question 4The figure shows a container filled with water. Which of the following statements is correct about pressure of water?(a) Pressure at A> Pressure at B> Pressure at C(b) Pressure at A=Pressure at B=Pressure at C(c) Pressure at A< Pressure at B>Pressure at C(d) Pressure at A< Pressure at B<Pressure at C |
|
Answer» Question 4 |
|
| 1543. |
Question 8 (ii)Fill in the blanks.(b) One of the most common applications of chemical effect of electric current is ___. |
|
Answer» Question 8 (ii) Fill in the blanks. (b) One of the most common applications of chemical effect of electric current is |
|
| 1544. |
13.Explain in detail that why sound travels faster in solids than liquid or gases |
| Answer» 13.Explain in detail that why sound travels faster in solids than liquid or gases | |
| 1545. |
type of image formed by plane mirror for a virtual object. with ray diagram |
| Answer» type of image formed by plane mirror for a virtual object. with ray diagram | |
| 1546. |
For the data given below:Distance (from origin)Time0 km9:00 AM10 km9:30 AM20 km10:00 AM40 km10:30 AMSelect the graph that most appropriately represents the above data. |
||||||||||
|
Answer» For the data given below:
Select the graph that most appropriately represents the above data. |
|||||||||||
| 1547. |
Which car is moving at a higher speed? |
|
Answer» Which car is moving at a higher speed?
|
|
| 1548. |
5.In oblique collision WHY linear momentum remains conserved in perpendicular direction of the line 'joining their center of mass' ? |
| Answer» 5.In oblique collision WHY linear momentum remains conserved in perpendicular direction of the line 'joining their center of mass' ? | |
| 1549. |
Boiling of water is an example of |
|
Answer» Boiling of water is an example of |
|
| 1550. |
what is the electronic configuration of plutonium |
| Answer» what is the electronic configuration of plutonium | |
