Saved Bookmarks
This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Those who will answer accuraterly i will mark his answer brainlest |
|
Answer» ANSWER in ATTACHMENT................. |
|
| 2. |
Find out the color code for the following value of resistor having tolerance plus minus 10% |
| Answer» | |
| 3. |
Time graph slove it |
|
Answer» Answer: 1 is suitable for you |
|
| 4. |
two forces act at an angle of 120 the bigger force is 40 N find the smaller force if the resultant is perpendicular to the smaller force |
|
Answer» Answer:20root 3 Explanation: |
|
| 5. |
What is the necessity of using a filter in a rectifier |
|
Answer» The FILTER is a device that allows passing the dc component of the load and blocks the ac component of the rectifier OUTPUT. Thus the output of the filter CIRCUIT will be a steady dc voltage.so it is necessary to USE a filter |
|
| 6. |
Those who will answer i will mark his answer brainlest |
|
Answer» PLS MARK as BRAINLIEST |
|
| 7. |
F = Gm1m2/d²what will be formula form1 = m1m2 = 2m2d = d |
|
Answer» ANSWER:very SMALL answer this is too simple 2Gm1m2/d² |
|
| 8. |
A parachutist flying in an aeroplane iumps when it is at a heightaeroplane jumps when it is at a height of 3 km above ground.He opens his parachute when he is about 1km above ground. Descriu |
|
Answer» Answer: Suppose the AEROPLANE is flying horizontally. Now parachutist is like a freely falling body in vertically downward direction and has uniform velocity equal to aeroplane velocity in horizontal direction till he opens parachute at a height 1km from the ground. now after opening parachute , air resistance and buoyancy force also acts on him along with gravitational force. in the presence of these forces , NET ACCELERATION of parachutist becomes zero after falling through certain height . now he attains constant velocity known as terminal velocity and FINALLY he REACHES the ground with the same terminal. |
|
| 10. |
An object is placed at 2F of a convex lens of focal length 'f".Another identical lens is kept co-axially in the focal plane ofthe first lens, on the other side. Final image is formed at:(a) 3f/2 from the first lens (b) f/2 from the first lens(c) 2f from the first lens (d) 2f from the second lens |
| Answer» | |
| 11. |
Please solve it and if not answer follow me and who will answer i will follow it |
| Answer» | |
| 12. |
Radius of curvature of each surface of an equiconvex lens(u = 1.5) is 30 cm. One of the surfaces is silvered fromoutside to make it reflecting. An object is placed in front ofthe silvered lens at such a position that the image formedcoincides with the object. Distance of the object from thelens is :(a) 20 cm(b) 18 cm(c) 15 cm(d) 12 cm |
| Answer» | |
| 13. |
Find the electric field by the plates in figure 1 and 2?? |
|
Answer» The crystal FIELD model is SUCCESSFUL in explaining the FORMATION structure, colour and magnetic PROPERTIES of coordinate COMPOUNDS. |
|
| 14. |
a capacitor of capacitance 4micro farad is charged to 80Vand another capacitor of capacitance 6micro farad is charged to 30V when they're connected together in capacitance will be? |
|
Answer» Answer: FOLLOW me and mark as brainlist Explanation: A body of capacity is CHARGED to and another body of capacity is charged to . When they are connected the ENERGY lost by capacitor is |
|
| 15. |
“Current or charge do not increase to get used up when going through a wire or other device”What is the meaning of this statement? |
|
Answer» The meaning is that when some current is flowing that flow of protons or CHARGED PARTICLE causes some current on wire.Here the electrons are not consumed or used their movement causes current. |
|
| 16. |
A horizontal copper rod moves paralleľ to thehorizontal. Induced e.m.f developed across its endsdue to earth's magnetic field will be maximum at(1) Equator(2) Latitude 30°(3) Latitude 60°(4) Poles |
|
Answer» Answer: At the poles. Explanation: The rod is moving in the horizontal direction. So it's have no EFFECT due to Bh (Earth's horizontal Field) since angle is 0 and sin TETHA is 0. At poles Bh is 0 and BV is maximum. So maximum EMF is induced at the poles. :) |
|
| 17. |
Find the electric flux passing through the plate?? |
|
Answer» Edacos(THITA)=¤ Explanation: it is for the ELECTRIC flux cos0=1=Eda=¤ |
|
| 18. |
It's urgent answer pls difference between spring balance and physical balance |
|
Answer»
BEAM balance is USED to measure the mass of an object. SPRING balance is used to measure the WEIGHT of an object. A beam balance measures the mass of the body while a spring balance measures the weight of the body taken into consideration.
|
|
| 19. |
Prove lens and morror formula with step by step solution. |
|
Answer» Answer: If v is the distance of IMAGE from the mirror or LENS and U is the distance of the object from the mirror or lens and f is the focal LENGTH of the mirror or lens then. Mirror formula: 1/v+1/u=1/f. Lens formula: 1/v-1/u=1/f. |
|
| 20. |
The radiation initially produced in flouoroscent tube is |
|
Answer» ultraviolet Explanation: |
|
| 21. |
I forgot, five items which use energy transferred by electricity |
|
Answer» Transferring energy In each of these examples, energy is transferred by one of the following four types of energy transfer: mechanical work - a force moving an object through a distance electrical work - charges moving due to a potential difference heating - due to temperature difference caused electrically or by chemical reaction radiation - energy tranferred as a wave, eg light and infrared - light radiation and infrared radiation are emitted from the sun Doing 'work' is the SCIENTIFIC way of saying that energy has been transferred. For example, a grazing cow, a firing catapult and a boiling KETTLE are all doing 'work', as energy is being transferred. Energy flow diagrams Diagrams can be used to show how energy is transferred from one store to another. Two examples are the transfer diagram and the Sankey diagram. Transfer diagrams In transfer diagrams the boxes show the energy STORES and the arrows show the energy transfers. For example, a transfer diagram for a child at the top of a SLIDE may be: Energy transfer diagram of a child on a slide Gravitational energy stored in the child at the top of the slide is transferred as mechanical work done to speed up and to do work against friction. The result of this is a SHIFT of energy from gravitational potential energy to kinetic energy and internal energy (raising the temperature of the child and the slide). |
|
| 22. |
draw a well labelled diagram to show different trajectories depending upon the tangential projection speed |
| Answer» | |
| 23. |
Can we fill 3 electrons in an orbital guess |
|
Answer» I GUESS we can't fill in the FIRST orbit but we can fill in the other orbits .... |
|
| 24. |
Please tell me the second law of thermodynamics in energy flow ( law of conservation of energy) |
| Answer» | |
| 25. |
Suppose there existed a planet that went around the sun in 8 years,what would be its orbital size as compared to that of the earth? |
| Answer» | |
| 26. |
Name five items which use energy transfrred by electricity |
|
Answer» MARK me as BRAINLIEST mark me as t |
|
| 27. |
gravitational force of between two bodies distance x is 20N what is force attraction distance between made 2x |
|
Answer» |
|
| 28. |
भारत में 'बीबी का मकबरा' स्थित है-(A) हैदराबाद में (B) फतेहपुर सीकरी में(C) औरंगाबाद में (D) बीजापुर में'बियर' (Bear) तथा 'बुल' (Bull) शब्दों |
|
Answer» OPTION -c aurangabad MEIN |
|
| 29. |
Properties of sound |
|
Answer» Answer: sound is a form of energy, just like ELECTRICITY, heat or light. When you strike a bell, it makes a loud ringing noise. Now INSTEAD of just listening to the bell, put your finger on the bell after you have struck it. Can you feel it shaking? This movement or shaking, i.e. the to and fro motion of the body is termed as Vibration. The sound moves through a medium by alternately contracting and expanding PARTS of the medium it is travelling through. This compression and expansion create a minute pressure difference that we perceive as sound. Let’s discuss the characteristics of sound waves like amplitude, frequency, WAVELENGTH, and timbre.
|
|
| 30. |
For a radiation if 6Ghz passing through air the wave number per 1 Meyer length is |
|
Answer» Explanation: Given for a radiation if 6 G hz passing through air the wave NUMBER per 1 Meter length is
Reference LINK will be |
|
| 32. |
Three balls of different masses m1>m2>m3, isprojected with same initial speeds at an 15°,45°,75°then their ranges are respectively:(1)R1>R2>R₃ (2)R3>R2>R1(3)R1=R2=R3 (4) R1=R3 |
|
Answer» Your ANSWER is D ... THANK you |
|
| 34. |
A sound wave emitted by a vibrator has a frequency of 40000 Hz:(0) Name the type of wave.(ii) Give one medical use of the wave mentioned in (i) (iii) Two aeroplanes A & B moving at speeds 250 m/s and 350 m/s |
|
Answer» ULTRASONIC wave |
|
| 35. |
Different types of energy |
|
Answer» Answer: they are 10 types of energy are there ,they are Mechanical Energy Mechanical energy is energy that results from movement or the location of an object. Mechanical energy is the sum of kinetic energy and POTENTIAL energy. Thermal Energy Thermal energy or heat energy reflects the temperature difference between two systems. Example: A cup of hot coffee has thermal energy. You generate heat and have thermal energy with respect to your environment. Nuclear Energy Nuclear energy is energy resulting from changes in the atomic nuclei or from nuclear reactions. Example: Nuclear fission, nuclear fusion, and nuclear decay are EXAMPLES of nuclear energy. An atomic detonation or power from a nuclear PLANT are SPECIFIC examples of this type of energy. Chemical Energy Chemical energy results from chemical reactions between atoms or molecules. There are different types of chemical energy, such as electrochemical energy and chemiluminescence. Example: A good example of chemical energy is an electrochemical cell or battery. Electromagnetic Energy Electromagnetic energy (or radiant energy) is energy from light or electromagnetic waves. Sonic Energy Sonic energy is the energy of sound waves. Sound waves travel through the air or another medium. Example: A sonic boom, a song played on a stereo, your voice. Gravitational Energy Energy associated with gravity involves the attraction between two objects based on their mass. It can serve as a basis for mechanical energy, such as the potential energy of an object placed on a shelf or the kinetic energy of the Moon in orbit around the Earth. Example: Gravitational energy holds the atmosphere to the Earth. Kinetic Energy Kinetic energy is the energy of MOTION of a body. It ranges from 0 to a positive value. Potential Energy Potential energy is the energy of an object's position. Example: is throwing a ball into the air. At the highest point, the potential energy is greatest. As the ball rises or falls it has a combination of potential and kinetic energy. Ionization Energy Ionization energy is the form of energy that binds electrons to the nucleus of its atom, ion, or molecule. Example: The first ionization energy of an atom is the energy needed to remove one electron completely. The second ionization energy is energy to remove a second electron and is greater than that required to remove the first electron Mechanical Energy Mechanical energy is energy that results from movement or the location of an object. Mechanical energy is the sum of kinetic energy and potential energy. Examples: An object possessing mechanical energy has both kinetic and potential energy, although the energy of one of the forms may be equal to zero. A moving car has kinetic energy. If you move the car up a mountain, it has kinetic and potential energy. A book sitting on a table has potential energy. Thermal Energy Thermal energy or heat energy reflects the temperature difference between two systems. Example: A cup of hot coffee has thermal energy. You generate heat and have thermal energy with respect to your environment. Nuclear Energy Nuclear energy is energy resulting from changes in the atomic nuclei or from nuclear reactions. Chemical Energy Chemical energy results from chemical reactions between atoms or molecules. There are different types of chemical energy, such as electrochemical energy Example: A good example of chemical energy is an electrochemical cell or battery. Electromagnetic Energy Electromagnetic energy (or radiant energy) is energy from light or electromagnetic waves. Example: Any form of light has electromagnetic energy, including parts of the spectrum we can't see. Radio, gamma rays, x-rays, microwaves Sonic Energy Sonic energy is the energy of sound waves. Sound waves travel through the air or another medium. Example: A sonic boom, a song played on a stereo, your voice. Gravitational Energy Energy associated with gravity involves the attraction between two objects based on their mass. It can serve as a basis for mechanical energy, such as the potential energy of an object placed on a shelf or the kinetic energy of the Moon in orbit around the Earth. Example: Gravitational energy holds the atmosphere to the Earth. Kinetic Energy Kinetic energy is the energy of motion of a body. It ranges from 0 to a positive value. Potential Energy Potential energy is the energy of an object's position. ionization energy Ionization energy is the form of energy that binds electrons to the nucleus of its atom, ion, or molecule. i hope this will help you and mark it as brainlist Explanation: |
|
| 36. |
Which is the place of enjoy ment???? |
|
Answer» Answer: picnic spot mark me BRAINLIST |
|
| 37. |
In a uniform electric feild, aparticle with charge -q & massm is projected from origin asshown. Find (i) equation oftragectory of the particle (ii) Time to cross the x-axis again.(iii) The maximum y-coordinateachieved . (iv) The x-coordinatewhen the particle crosses thex-axis. |
| Answer» | |
| 38. |
Writeeasy definition of potential energy |
|
Answer» It is the ENERGY possessed by an OBJECT due to CHANGE in ALTITUDE. |
|
| 39. |
Y do stars twinkle...? |
|
Answer» Yeah Please MAKE me BRAINLIEST |
|
| 40. |
Explain the laws of floatation. |
|
Answer» Answer:The law of FLOATATION states that when a BODY is wholly or PARTIALLY immersed in a liquid, it FLOATS if the weight of the liquid displaced is EQUAL to the weight of the body. |
|
| 41. |
Fourier inverse theorem and fourier integral theorem. Are they same? |
|
Answer» YES they are same |
|
| 42. |
If the speed of light in a medium is 2 x 10 m/s, what is the absolute referactive index of themedium. (velocity of light in vacuum = 3 X 108 m/s) |
|
Answer» Answer: Refractive INDEX = Speed of LIGHT in AIR (vacuum)/speed of light in GLASS (medium) Speed in vacuum/air = 3 X 108m/s Speed in medium/glass = 2 X 10m/s Refractive index = 3 X 108/2 X 10 = 324/20 =16.2 |
|
| 43. |
What do you mean by space time ?? |
|
Answer» Answer: The four-dimensional continuum in which all objects are located and all EVENTS occur, viewed as a SINGLE and continuous framework for EXISTENCE. Space-time CONSISTS of LENGTH, width, depth, and time... |
|
| 44. |
Give a detailed account on irigation. |
|
Answer» Irrigation is the application of controlled AMOUNTS of water to plants at needed intervals. Irrigation helps to grow agricultural crops, maintain landscapes, and revegetate disturbed soils in dry areas and during PERIODS of less than average rainfall. Irrigation also has other uses in crop production, including frost protection,[1] suppressing weed growth in grain fields[2] and preventing SOIL consolidation.[3] In contrast, agriculture that relies only on direct rainfall is referred to as rain-fed. Irrigation is the application of controlled amounts of water to plants at needed intervals. Irrigation helps to grow agricultural crops, maintain landscapes, and revegetate disturbed soils in dry areas and during periods of less than average rainfall. Irrigation also has other uses in crop production, including frost protection,[1] suppressing weed growth in grain fields[2] and preventing soil consolidation.[3] In contrast, agriculture that relies only on direct rainfall is referred to as rain-fed.Irrigation systems are also USED for cooling livestock, dust suppression, disposal of sewage, and in mining. Irrigation is often studied together with drainage, which is the removal of surface and sub-surface water from a given area. |
|
| 45. |
two point charge 6 MC and 24 MC are placed as shown in figure where should the third point charge must be placed so that net force on it zero |
|
Answer» placed as SHOWN in FIGURE where should the third point charge must be placed so that NET FORCE on it zero |
|
| 46. |
A copper wire has diameter 0.5 millimetre and resistivity of 1.6 into 10 to the power 85 cm what will be the length of this wire to make its resistance then by how much does the resistance change if the diameter is doubled |
|
Answer» isn't that 10-8? |
|
| 47. |
Calculate the mass of sodium chloride which is required to prepare 25℅ mass by mass ℅ 150 gm of water |
|
Answer» Explanation: |
|
| 48. |
Difference between average velocity and relative velocity in points |
|
Answer» Answer: average VELOCITY is the average velocity of an object relative to the frame of reference while relative velocity REFERS to the velocity of an object relative to another object which is the vector sum of the TWO. |
|
| 49. |
There is an air bubble of radius 1.0 mm in a liquid of surface tension 0.075 n/m and density 1000kg/m3.the bubble is at depth of 10cm below the free surface.By what amount is the pressure inside the bubble greater than the atmospheric pressure?take g=9.8m/s2 |
| Answer» | |