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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. |
state the law of conservation of energy? prove that energy is conserved when any object is freely falling under the influence of gravity? |
Answer» SORRY I don't KNOW but KOI TUMHARI HELP kardega |
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| 2. |
The efficiency of the carnot heat engine is |
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Answer» Answer: The EFFICIENCY of Carnot ENGINE:-is the amount of WORK done by the engine per cycle to the amount of HEAT absorbed by the working substance.i.e Q1-Q2/Q1=1-Q2/Q1 |
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| 3. |
Degrees of freedom for diatomic gas is |
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Answer» Answer: |
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| 4. |
a man runs towards a plane mirror at a rate of 6 ms-1. if the mirror is at rest ,his image will have a velocity[with respect to man] |
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Answer» Answer: 12m/s
Friends as we KNOW that , VELOCITY of object = 2× velocity of image SINCE, 6 m/s has velocity of object so velocity of image will be 12m/s with respect to MAN________________________Hope it's helpful |
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| 5. |
(a) A bullet travelling at the rate of 100's is just able to pesa wooden plank 8 cm thickWhat velocity is required to pierce a plank 32cm thick?() A car starts from rest, accelerates uniformly & covers TD m is fit 20 sec. What will bethe displacement covered in next 20 sec? |
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Answer» a)400's b)2TD Explanation: |
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| 6. |
The number of atoms in triatomic gas are |
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Answer» Answer: 3 ATOM s are there in TRIATOMIC gas. Explanation: Hope it helps you. |
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| 7. |
Pls answer this. With explanation. |
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Answer» Answer: SOLUTION A will LIBERATE hydrogen . because METAL reacts with acid.and acid have PH value less than7 |
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| 8. |
Formula for the pressure of an ideal gas |
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Answer» Answer: FIRST, LET's review the ideal GAS law, PV = nRT. In this equation, 'P' is the pressure in atmospheres, 'V' is the volume in LITERS, 'n' is the number of particles in moles, 'T' is the temperature in Kelvin and 'R' is the ideal gas CONSTANT (0.0821 liter atmospheres per moles Kelvin). |
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| 9. |
There is ..........relationship between number of images and the angle between the mirrors |
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Answer» The number of images formed by two adjacent plane MIRRORS depends on the angle between the MIRROR. If (in degrees) is angle between the plane mirrors then number of images are given by, n = 360 θ − 1. |
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| 10. |
Relative density of iron is 8.7. What does statement mean |
Answer» HOPE it HELPS you and PLS mark it as brainlist.......FOLLOW for follow back |
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| 11. |
If x=a+b calculate absolute error in x? |
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Answer» x can't be the sum of a and B then Please mark as BRAINIEST answer |
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| 12. |
❣️❤️❣️hi friends ❣️❤️❣️1000 krwa do inke followers plzfollow him plz ❣️❤️❣️question❣️❤️❣️what is sound, wave, frequency, time period |
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Answer» Answer: Heyy...FREQUENCY is the number of vibration PER SECOND created by VIBRATING objects.Time period is defined as the time taken to complete one vibration. |
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| 13. |
Find the current drawn by the battery and the potential difference between A and B. |
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Answer» PLZZ MARK ME AS BRAINLIST SORRY FOR BAD HANDWRITING |
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| 14. |
Draw a ray diagram to show the formation of the image of a point object(i) a plane mirror and (ii) a convex mirror. |
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Answer» Explanation: hell yeah I know you are a little more than anything in the middle of the African countries in the middle of the African countries in the middle of the African countries in the middle of the African countries in the middle of a circle of life is a Muslim and the two and a few days to get the chance that you have a good NIGHT my love for you guys doing today babe I'm sorry I didn't want me too much for the FIRST place and I don't know what I want to go to with me and I have to go to in my life is good to me and for the development of the African countries in the middle of a circle is the name of Prophet S III I have to go to the GYM and then I will be there for you to be a good day at work and I have to go to the gym and then I will be there for you to come back and get it done by the way I COULD be the same thing I want you to get it done before I get home to get a new one and I will try my HARDEST not to be |
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| 15. |
Force acting on 20kg mass changes its velocity from 5 metre second 22 metre second calculate the work done by the force |
Answer» HII FRIEND PLEASE FOLLOW m |
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| 17. |
which kind of tissue shows respons when given some stimulus. describe structure of such a tissue in detail with the help of diagram. |
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| 18. |
5)What Is the name for the frequency that make a musical made distinct |
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Answer» Answer: If you're asking about what makes a note distinct, as in what DISTINGUISHES an A from a C, that WOULD be called the fundamental frequency. A “CONCERT A”, for instance, has a fundamental frequency of 440 Hz. A middle C is 261.625565 Hz. Explanation: |
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| 19. |
Explain refraction of light through a prism in brief |
Answer»
▬▬▬▬★ஜ۩۞۩ஜ★▬▬▬▬ ▬▬▬▬★ஜ۩۞۩ஜ★▬▬▬▬ |
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| 20. |
A faulty thermometer indicates -o.4°c and 100.6°c at the ice and steam points respectively.What is the reading of this in a liquid whose true temperature is 80°c |
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Answer» T= 80.56°C Explanation..: READ the ATTACHMENT. |
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| 21. |
Focal length of concave lens is 20 cm. Find its power. |
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Answer» p=1/f p=1/(20/100) p=5d |
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| 22. |
A wire of given material having length land area of cross-section Ahas a resistance of 42. What would be the resistance of another wireof the same material having length 1/2 and area of cross-section 2A? |
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Answer» Answer: R1=42 and GIVEN when LENGTH /area so length BECOME l/2andarea become 2a so resistance BECAME R2=R1/4 |
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| 23. |
U.O28.y2-0a. O b. 1 c. 415. The velocity of sound of frequency 256 HZ travelling in water of Bulkmodulus 0.022 x 10" Pa isa. 1440 ms? b. 1468 ms' C. 1499 ms d. 1483ms29.30.31. |
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Answer» Answer: |
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| 24. |
Explain how an electric bell works |
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Answer» Answer: An electric bell CONTAINS an electromagnet, consisting of COILS of insulated wire wound round iron rods. When an electric CURRENT flows through the coils, the rods become magnetic and attract a piece of iron attached to a clapper. The clapper HITS the bell and makes it ring. Explanation: |
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| 25. |
Star appearing to be twinkling class 10th |
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Answer» Answer: The stars twinkle in the night sky because of the effects of our atmosphere. When starlight enters our atmosphere it is affected by WINDS in the atmosphere and by areas with different temperatures and densities. This causes the LIGHT from the star to twinkle when SEEN from the GROUND. I will SUGGEST you to go by ncert |
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| 26. |
What is the SI and CGS unit of volume and pressure |
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Answer» The SI unit of pressure is PASCAL - Pa The SI unit of volume is cubic meter - m3 The CGS unit of pressure is Barye The CGS unit of volume is liter Explanation: hope it help you pls mark as brainlist |
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| 27. |
What is the relationship between power force and velocity |
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Answer» Answer: In the straightforward cases where a constant FORCE MOVES an object at constant velocity, the POWER is just P = Fv. In a more general case where the velocity is not in the same direction as the force, then the SCALAR PRODUCT of force and velocity must be used. |
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| 28. |
E.What is meant by satellite launch vehicles?Explain a satellite launch vehicle developedby ISRO with the help of a schematicdiagram. |
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| 29. |
What is mean by ppi |
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Answer» |
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| 30. |
Report on traffic condition |
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Answer» Answer: The roads and streets are very narrow in comparison with the number of VEHICLES. ... Frequent road construction and maintenance work OFTEN CREATE traffic problem. Sometimes different POLITICAL parties are found to use city roads for their political activities. The general people EXPECT a permanent solution of the problems. |
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| 31. |
What is the ful form of LED |
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Answer» Answer: LED stands for LIGHT Emitting Diode. It is a two-lead semiconductor light source. It is a pn-junction diode which emits light when activated. It is a very important electronic DEVICE because it is used in a LOT of ELECTRICAL and electronic devices now a days. |
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| 32. |
Anades need to be it replaced time to time |
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Answer» |
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| 33. |
A carnot engine takes in heat from a reservoir of heat at 427°C and gives out heat to the sink at 77°C. How many calories of heat must it take from the reservoir in order to produce useful mechanical work at the rate of 357 watt? |
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Answer» Explanation: efficiency = useful work / ENERGY taken = 1 - (Tsnk/Tsou) So useful work / energy taken = 400/527 Thereforc energy to be taken = (527/400) * useful work = (527/400) * 750 = 988,125W 1 W = (1/4.180) CAL/s Hence energy in cal to be taken RIGHT from reservoir = 988.125 * 1/4.180 = 236.4 cal i HOPE it is helpful for you |
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| 34. |
a bird begins to accelerate at a constant 0.3 metre per second squre for 3 seconds what is the change in velocity |
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Answer» It is 0.9 Explanation: Acceleration = change in VELOCITY ÷ TIME taken 0.3 = x ÷ 3 x = 0.9 Therefore, the change in velocity = 0.9 HOPE THIS HELPS YOU....... |
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| 35. |
What do you mean by the word transhumance ???? |
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Answer» Answer: transhumance is the seasonal movement of people who rear CATTLE. they do so to find good grazing GROUND for their ANIMALS |
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| 36. |
What does a thermistor consist of? |
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Answer» What does a thermistor CONSIST of? Answer: Many NTC thermistors are made from a pressed disc, ROD, plate, bead or cast chip of semiconducting material such as sintered METAL oxides. They work because RAISING the temperature of a semiconductor increases the number of active charge carriers it promotes them into the CONDUCTION band. |
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| 37. |
what will be the value of incident angle and angle of refraction for which the value of lateral displacement is equal to the thickness of glass slab |
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Answer» ANSWER:vhhfjfkfjrjfjrjd Djdjrkfk Explanation: |
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| 38. |
the ratio of resolving power of telescope when lights of wavelength 5000A and 4000A are used is______ |
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Answer» 5:4 is your ANSWER..... |
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| 39. |
Can I actually know what differentiates the sound of guitar and that of flute? |
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Answer» There is difference in timbre of sound of GUITAR and Flute. Follow kerna banta HAI..!MARK as brainliest ANSWER to get points |
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| 40. |
(ii) If water of mass 40 g and temperature 55°C is mixed with water of mass 10 g andtemperature 20° C, what will be the maximum temperature of the mixture? |
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Answer» sdhhjjjhgghjjjhhjkkj Explanation: sdghiytyjkhgfdfnmjyfgkkigfgjjyewwfvnkkk |
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| 41. |
Hi friends solve the question |
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Answer» Answer: hii buddy here is your answer Explanation: The National Register of Citizens is a register of all Indian citizens whose creation is mandated by the 2003 amendment of the CITIZENSHIP Act, 1955. Its PURPOSE is to document all the legal citizens of India so that the illegal MIGRANTS can be identified and DEPORTED |
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| 42. |
What is space wave propagation? |
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Answer» Television broadcast, MICROWAVE links and satellite communication are some examples of communication systems that use space wave mode of propagation. A space wave travels in a straight line from TRANSMITTING antenna to the receiving antenna. |
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| 43. |
Which is the window of the eye? |
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Answer» Answer: The cornea is a transparent dome-shaped TISSUE that forms the front part of your EYE. It functions as a window and allows light to enter your eye. It ALSO begins the process of focusing light rays that allow you to see words and images CLEARLY. The cornea PROVIDES 65-75% of your eye's focusing power. |
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| 44. |
State one way in which media influences money !!!! |
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Answer» |
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| 45. |
.d) Trace the path ofreflected roy in.the followingray diagram: |
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Answer» where is diagram Explanation: ¿¿............ |
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| 46. |
State Huygen's principle. On the basis of Huygen'stheory establish the relation refractive index of prism = (sin (A+Dm/2))/(sin (A/2)) |
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Answer» Answer: The Huygens-Fresnel principle states that every point on a WAVEFRONT is a source of wavelets. These wavelets SPREAD out in the forward DIRECTION, at the same speed as the source wave. The new wavefront is a line TANGENT to all of the wavelets. |
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| 47. |
. An object weighs 20 N in air. When immersed fully in water, it weighs only 15N. Thenthe weight of the liquid displaced by the object will beb)20 Nc)5Nd)2.5 NA plastic ball, a wooden hoy and an iron hall all hnurn the anmelumn Than thama)ION |
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Answer» Answer: 0 N uugibuvtu hhh8uuu7 |
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| 48. |
A simple definition of resistivity |
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Answer» Answer: Resistivity is a measure of the RESISTANCE of a GIVEN SIZE of a specific material to electrical conduction. ... Materials that conduct electrical current easily are called CONDUCTORS and have a low resistivity. Those that do not conduct electricity easily are called INSULATORS and these materials have a high resistivity. |
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| 49. |
Which character of wave does nit changing on change the median? a.amplitude b.frequency c.echo d.loudness |
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Answer» B)frequency Explanation: |
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