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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. |
Hey please tell me any science project |
Answer» Make A Kaleidoscope...it is an INTERESTING instrument. . A KALEIDOSCOPE is an optical instrument consisting of two or more reflecting surfaces. These surfaces are tilted towards each other at a certain angle to obtain symmetrical PATTERS when viewed from the other end. The tube with reflecting surfaces consists of COLOURED pieces of GLASS. |
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| 2. |
What is kakedioscope in long paragraph |
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Answer» Answer: A kaleidoscope is a tube with loose, small, colorful objects inside. These objects can be beads or SOMETHING similar. The inside is made USING three long mirrors. A person LOOKS into the kaleidoscope through one END and sees patterns CREATED by reflections of the objects inside. |
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| 3. |
. An object is moving with uniform positive acceleration.Plot a graphbetween position (x) and time (t). [x-t graph ]. |
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Answer» Answer: WELL, because the object is moving with uniform POSITIVE Acceleration this implies that the object's VELOCITY is continuously increasing at every instant. Now, you know that velocity is the SLOPE of the displacement time curve and hence the graph will be a vertical parabola something like in the IMAGE. |
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| 4. |
Why water is not suitable as a biometric material? |
Answer» Water is not a SUITABLE BAROMETRIC liquid because: ... Water barometer will support 10.4m of water at sea LEVEL. It is impractical to have such a LONG tube..... |
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| 6. |
Transistor output characteristics graph |
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Answer» MARK as BRAINLIEST Explanation: this answer will help you to understand Transistor input characteristics::::: These describe the changes in input current with the VARIATION in the values of input voltage keeping the output voltage constant. output characteristics:::::: This is a plot of output current versus output voltage with constant input current. 《《《《《《《《BADB¤Y》》》》》》》》 |
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| 8. |
Find the odd out .Give reason for your answer . Solid,Vacuum,liquid and gas |
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Answer» Answer: VACCUM is other type of word... so it is odd out... |
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| 9. |
A car travels from AtoB and returns to its original position. The distance between A and B.1. Find the total displacement of the car 2. The car takes 5min to travel from A to B but takes 8 min to travel back from B toA . is the speed of the car greater while going from AtoB while travelling back from BtoA .3. When can the magnitude of distance and displacement be equal for a body in motion |
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Answer» Explanation: 1 ANS- The TOTAL DISPLACEMENT of CAR is ZERO |
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| 10. |
Amrit takes 15 minutes from his home to reach the school on a bicycle. If the speed of bicycle is 3m/s. Calculate the distance between his home and the school. |
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Answer» 2700 is answer.. 15 minute equal to 900 second ... Speed of BICYCLE is 3m/sec.. so, DISTANCE is equal to TIME ×speed ... so distance equal to 900×3 = 2700.... Explanation: |
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| 11. |
find the magnitude of mass of the radius is 3.8 into 10 power 6 matters and average average densities 4 into 10 power 3 kg per metre cube |
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Answer» radius=3.8 into mattet=6 gt8658979tgchiy8gogguyltufymfykdymem |
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| 12. |
A pump can lift 100 kg of water from a well, 60m deep, in 20s. If the gravity on 1 kg of water is 10N, find: the work done by the pump |
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Answer» Answer: WORK DONE by the pump is that it lifted 100 KG of water from a WELL |
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| 13. |
Hai friends tell me a science project about physcis |
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Answer» electric generator Explanation: electric generator is the best science project in Physics which works on the PRINCIPLE of electromagnetic induction this project is made using a COIL ,a magnet and a cell |
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| 14. |
Find unit vector along a, where a= 2i+4j-5k |
| Answer» PLEASE MARK as BRAINLIEST | |
| 15. |
What is a tuning fork |
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Answer» Answer: A tuning fork is an acoustic resonator in the form of a two-pronged fork with the prongs formed from a U-shaped bar of ELASTIC metal. It resonates at a specific CONSTANT pitch when set vibrating by STRIKING it against a surface or with an OBJECT, and emits a pure musical tone once the high overtones fade out. Explanation: mark as branlist plz, |
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| 16. |
Speed of electric field |
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Answer» its HELP you MARK Me As BRAINLIEST |
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| 17. |
An object and it's image by a mirror of a focal length have distances from the focus in the ratio 1:4, the object distance isa) f/2b)2fc)3f/2d)2f/3 |
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Answer» I don't.....................,.................... ..................................... |
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| 18. |
What is electric current |
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Answer» Answer: 1)Definition: ELECTRIC current is defined as the rate of flow of negative charges of the conductor. In other words, the continuous flow of electrons in an electric circuit is called an electric current. The conducting material consists a LARGE number of free electrons which move from one ATOM to the other at random. Explanation: 1)An electric current is the rate of flow of electric charge past a point or region. An electric current is said to exist when there is a net flow of electric charge through a region. In electric circuits this charge is often carried by electrons moving through a wire. 2)Physics Concept. Electric current is the rate of flow of charge. It is the quantity of charge that passes through a surface (for example the cross SECTION of a wire) PER unit time. In electric circuits we usually think of the amount of charge that passes through a point on a wire per unit time. 3)Electric Current Formula and Unit If a charge Q flows through the cross-section of a conductor in time t, the current I then I=Q/t. The S.I unit of charge is coulomb and measurement of electric current happens in units of coulomb per second which is 'ampere'. i hope it helpfull to you mate.. |
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| 19. |
Write the properties of electromagnetic waves ? |
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Answer» Explanation: These are waves that consist of vibrating ELECTRIC and magnetic FIELDS. They transmit energy through MATTER or across space. Some electromagnetic waves are generally HARMLESS. ... Like other waves, electromagnetic waves have properties of speed, WAVELENGTH, and frequency. |
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| 20. |
A force F = (3i + 2j -4k) N acts on a particle. The position of particle with respect to origin O isr= (i +2j) m. Find the torque acting on the particle and calculate its magnitude. |
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Answer» Answer: TORQUE= force perpendicular to R*(distance=r) =>t= (3i+2j-4k)N*(i+2j)m =>t=(3+4)Nm =7 Nm |
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| 21. |
why does a magnetic needle gets deflected when bought near a wire carrying current? why does it becomes an electromagnet? |
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Answer» Answer: When a CURRENT carrying conductor PASSES over a magnetic needle from south to NORTH it deflects towards the west.It is known that the magnetic lines of FORCE around the conductor is circular as according to RIGHT hand thumb rule. hope..it..helps.. mark..me/...brainlist.. |
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| 22. |
The two ends of a magnet where magnetic power is concentrated |
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Answer» Answer: Magnetic strength of a magnet isconcentrated at the two regions namely THEPOLES of the magnet. To show this, TAKE a barmagnet and ROLL it up in a sheet of IRON FILINGS. |
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| 23. |
What are the difference between mass and energy |
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Answer» Answer: the mass of a body REGARDED energy that is KNOWN as energy. the STRENGTH AUR beta mitti of physical and physical mentally |
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| 24. |
Explan laplas correction over newtons formula |
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Answer» d is the density of air, p is the pressure of the air, cp is HEAT capacity at constant pressure and cv is that at constant volume Since, When the sound travels through air it's speed is quite HIGH and there is no time for heat exchange, therefore this is adiabatic process. That's why Is involved in this formula |
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| 25. |
Programe पारिभाषिक शब्द |
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Answer» Answer: Programming Terms and Definitions Below goes programming terminology for beginners: 1. Algorithm An algorithm is a set of instructions or rules designed to solve a definite problem. The problem can be simple like adding two numbers or a complex one, such as CONVERTING a video file from one format to another. Learn more about algorithms here 2. Program A COMPUTER program is termed as an organized collection of instructions, which when executed perform a specific task or function. A program is processed by the central processing unit (CPU) of the computer before it is executed. An example of a program is Microsoft Word, which is a word processing application that enables users to create and edit documents. The browsers that we use are also programs created to help us browse the internet. Learn more about programs here 3. API Application Programming Interface (API) is a set of rules, routines, and protocols to build software applications. APIs help in communication with third party programs or services, which can be used to build different software. Companies such as Facebook and Twitter actively use APIs to help developers gain easier access to their services. Learn more about APIs here 4. Argument Argument or arg is a value that is passed into a command or a function. For example, if SQR is a routine or function that returns the SQUARE of a number, then SQR(4) will return 16. Here, the value 4 is the argument. Similarly, if the edit is a function that edits a file, then in edit myfile.txt, ‘myfile.txt’ is the argument. Learn more about arguments here 5. ASCII American Standard Code for Information Interexchange (ASCII) is a standard that assigns letters, numbers and other characters different slots, AVAILABLE in the 8-bit code. The total number of slots available is 256. The ASCII decimal number is derived from binary, which is assigned to each letter, number, and CHARACTER. For example, the ‘$’ sign is assigned ASCII decimal number 036, while the lowercase ‘a’ character is assigned 097. Explanation: |
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| 26. |
Plzz answer this question...with full correct explaination.... |
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Answer» Answer: |
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| 27. |
What is a critical angle |
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Answer» Answer: The angle of incidence beyond which rays of light passing through a denser MEDIUM to the SURFACE of a less DENSE medium are no LONGER refracted but TOTALLY reflected. Hope it helped you... |
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| 28. |
The handle of a nutcracker is 18 cm long and a nut is placed 2 cm from its hinge. If a force of 36 kgf is placed on the nut, it will crack. Calculate the force which has to be applied at the end of the handle to crack the nut. |
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| 29. |
What is meant by solar cells |
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Answer» Solar cells are semi-conductor devices which USE SUNLIGHT to PRODUCE electricity. They are manufactured and processed in a similar fashion as computer memory chips. Solar cellsare PRIMARILY made up of silicon which absorbs the photons emitted by sun's RAYS. The process was discovered as early as 1839. |
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| 30. |
Show that mass of object on earth is six times the mass of object on moon |
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Answer» Answer: Explanation: Q1. State the universal law of gravitation. Ans. Every object in the universe attracts every other object with a force which is proportional to the PRODUCT of their MASSES and inversely proportional to the square of the distance between them. The force is ALONG the line joining the CENTRES of TWO objects Mark as brainlist ♀️ |
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| 31. |
A person carries a bucket to some distance .Work done by him is zero,why? |
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Answer» Assuming the place of work is at the same height that of the start point, there will e no change in in potential ENERGY. If the there is no change in the kinetic energy of the bucketfrom start to END, the work done is zero. So, the overall work done by the PERSON is equal to zero as no energy has been transferred. hope it helps U.....✌✌ |
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| 32. |
At what temperature will wood and iron appear equally hot or equally cold |
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Answer» At 37° C , 98.6° F and at Temperature of HUMAN body, wood and iron appear EQUALLY hot or equally cold. #Sumedhian❤❤ |
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| 33. |
Pls answer step by step.q3. |
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Answer» Please REFER to the attachment for the solution...... |
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| 34. |
A ball is released from a height and it reaches the ground in 3s. if g=9.8m s-2 ,find:(a) The height from which the ball was released,(b) The velocity with which the ball will strike the ground. |
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Answer» Given, t = 3 sec u = 0 m/s a = G = 9.8m/s² V = u + at v = 0 + 9.8(3) v = 29.4 m/s v² - u² = 2as (29.4)² - 0 = 2(9.8)s s = (29.4)²/19.6 s = 44.1 m plz MARK it as brainliest b..bye #ANSWERWITHQUALITY #BAL |
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| 35. |
Deduce the following equations of motion:(i) s = ut + (1/2) at2 (ii) v2 = u2+ 2 as |
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Answer» PLEASE MARK me as BRAINLIEST |
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| 36. |
Answer the or option please! |
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Answer» this is SCIENCE PREPARATORY PAPET |
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| 37. |
What is arthropoda explain it with example |
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Answer» Answer: Definition of arthropod. : any of a phylum (Arthropoda) of invertebrate animals (such as insects, ARACHNIDS, and crustaceans) that have a SEGMENTED body and jointed appendages, a usually chitinous exoskeleton molted at intervals, and a dorsal anterior brain connected to a ventral CHAIN of ganglia |
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| 38. |
Answer this plzz urgent |
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Answer» RAMESH bhosle Explanation: Ramesh bhosle at kolhapur verybetter 3star |
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| 39. |
A train 100m long is to cross a river bridge of lenght 800m. what time will it takes to cross the bridge? Given that the train moves with a constant velocity of 36km/h |
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| 40. |
Lows: X = a2b-3cd251. A physical quantity X is related to four measurable quantities a,b,c and d as follows: X = ?The percentage error in the measurement of a, b, c and d are 1%,2%,3% and 4% respectively. What is the percentageerror in quantity X? |
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Answer» Answer: 12.6 is the RIGHT answer Explanation: |
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| 41. |
Lever of length 2.5m has a load of 20 qfis tance of to cn from one end and fult another the ind of shorter arm and thea applied at the end of longer arm.sindi()Lo)TheTheLof effort arm.mechanccal advantage. |
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Answer» کچھ سمجھ نہیں آیا۔۔۔۔۔۔ |
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| 42. |
(iv) A standing wave is produced on a string fixed at one endand free at other. The length of string must be an(a) odd integral multiple of LAMDA/4(b) integral multiple of LAMDA/2(c) integral multiple of a LAMDA(d) integral multiple of a LAMDA/421+ |
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Answer» Answer: For a standing wave to be produced on a string such that one end is tied and the other is free The length of the VIBRATING string MUST be an odd multiple of lambda / 4. Where lambda is the WAVELENGTH of the associated wave. Also, if the string is tied at both the ends, then the length of the vibrating string must be an INTEGER multiple of lambda or the same as SAYING an even multiple of lambda / 2 Hope this helps you ! |
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| 43. |
Why does the weight of a body vary from poles to equator? weight of the body |
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Answer» Answer: YES it varies Its because weight is the measure of the force exerted by the OBJECT due to earth gravity alone.so gravity of earth varies from EQUATOR to poles.So the weight of the body varies from poles to equator. |
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| 44. |
What force, in newton, your muscles need to apply to hold a mass of 5 kg in your hand? state the assumption |
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Answer» WELL......u need to assume that acceleration due to gravity = 10m/s SQUARE.... Therefore....F = ma F = 5*10 F = 50 N |
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| 45. |
3.A person of mass 50 kg runs upto staircase of 40 steps in 6 sec. If the height of each step is 15 cm,then his power will be (If g = 10 m/s^2)1) 300 W2)500 W3) 600 W4) 1000 W |
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Answer» the answer is Explanation: 300 W |
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| 46. |
Ii) Draw the v-t graph of a ball of mass 20g moving along a straight line with an initialvelocity of 20cm/s that comes to rest after 10s. Mention the nature of its acceleration |
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Answer» Please refer to the attachment for the solution...... |
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| 47. |
The horizontal and vertical displacement of a projectile are given x=12t and y=16t -5t^2 all the quantities being SI system. the maximum height of the projectile is |
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| 48. |
Under what conditions is the magnitude of average velocity of an object equal to its average speed. |
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Answer» If displacement of equal to the ACTUAL DISTANCE covered, which is POSSIBLE in CASE of straight line motion only.. in that case average velocity is equal to average speed |
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