Saved Bookmarks
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.
| 65251. |
From the following displacement-time graph find out the velocity of a moving body. Timo (sec) 30- Displacement (meter) (a) 1/√3 m/s (b) 1 m/s (C) √3 m/s (d) 1/3m/s |
|
Answer» दचढृकजचःठंचडृईठंछढैठःछमिडदजौआचंचढौआचःज |
|
| 65252. |
Define what is photosynthesis?? |
| Answer» HEMATOLOGY is the study of blood and blood DISORDERS. Hematologists and hematopathologists are HIGHLY TRAINED healthcare providers who specialize in diseases of the blood and blood components. These INCLUDE blood and bone marrow cells. | |
| 65253. |
किसी खींचे तार में प्रति एकांक आयतन आंतरिक ऊर्जा का सूत्र निगमित कीजिए। |
| Answer» | |
| 65254. |
A gas occupies 4.31L at a pressure 0.755atom. determine the volume if the pressure is increased to 1.25 atom. |
| Answer» PLEASE GIVE me your numberExplanation:and PLESE ANSWER my QUESTIONS | |
| 65255. |
State why it is necessary to leave an air space in a closed glass bottle of water when it is to be kept in a refrigerator |
|
Answer» tion:AIR space is left to provide room for expansion when TEMPERATURE falls below 4oC. Next: When temperature of water reaches its boiling point, bubbles rise to the surface.... Previous: DEFINE the TERM specific latent heat of FUSION |
|
| 65256. |
A body is thrown with a speed of 19.6 m/s making an angle of 300 with the horizontal, then the time of flight is1) 1s 2) 2s 3) 3 s4) 5 s |
| Answer» SPEED is 19.6 m/sangle is 300so FIND TIME 5 s | |
| 65257. |
Question 10. Each of the two point charges are doubled and their distance is halved. Force of interaction becomes p times, where p is: (a) 1 (b) 4. (C) (d) 16 16 |
| Answer» C 16Explanation:By Coulomb's LAW, the force between TWO charges q 1 and q 2 is F= r 2 KQ 1 q 2 where r= separation between charges.When charges are doubled and their distance is halved , the force of interaction becomes F ′ = (r/2) 2 k(2q 1 )(2q 2 ) =16FThus, the value of n will be 16. | |
| 65258. |
For space wave propagation derive los distance I.eD=4.123(✓ht+✓hr) |
|
Answer» When a wave propagates in a straight line, from the transmitting antenna to the RECEIVING antenna, its 'mode of propagation' is called space wave communication. Space waves are used for the Line of Sight (LOS) communication. Space wave communication INVOLVES the transmission from transmitter, traveling along a straight line in space, REACHES to receiving antenna. The range of their frequencies is 40 MHz and above. The range of space wave propagation is limited by line of sight distance between transmission to receiver /repeater antenna. From FIGURE, the range of antenna PC is PA.Using Pythagoras theorem(R+h)2=PA2+R2⟹PA=h2+2Rh≈2Rh(h< |
|
| 65259. |
12. Which of the following is the S.I. unit of relative density? (i) kg. (ii) m. (iii) kg/m3. (iv) none. |
|
Answer» (4) noneIt is UNITLESS quantityplease MARK as BRAINLIEST ❤️ |
|
| 65260. |
O5 Name the convenient unit we use to measure theA volume of air filled in a ballonAng |
|
Answer» 0Explanation:XD Definitions and Synonymsan EXPRESSION USED in text messages or e-mails signaling happiness or LAUGHTER. XD is an emoticon. X REPRESENTS closed EYES while D stands for an open mouth |
|
| 65261. |
Can you explain how bullet train and a circuit breaker work on the magnetic effect of a current? |
|
Answer» Bullet trains : Bullet trains are also called Magev trains as they WORK with the help of powerful electromagnets which make them high speed trains , electromagnets are attached to METAL lining of track and large magnets are present inside the TRAIN , they work on the principal that like poles repel and UNLIKE poles ATTRACT. Circuit breakers: It is a device which cuts the power when when there is too much current flowing through the circuits ,they are also called fuses , they work with the help of electromagnet , to cut the circuit |
|
| 65263. |
Q.[Class 11th] A particle moves in the x-y plane and its x and y coordinate depends on time(t) in sec given by x=8t metre and y=6t-t² metre then find its speed at t=0 second and t=2 second. Also derive equation of trajectory. Note-Show solution with steps with no unnecessary answers just to gain points. |
| Answer» GIVEN,x=4t 2 +5t+16y=5tvelocity along x-axisv x = dtdx =(8t+5)m/sacceleration along x-axis,a x = dtv x =8m/svelocity alon y-axisv y = dtdy =5m/sacceleration along y- axis,a y = dtv y =0m/sThe acceleration of the particle is given BYA =a x i^ +a y J^ ∣ a ∣= a x2 +a y2 a= 8 2 +0 2 =8m/s 2 EXPLANATION:plz MARK me as brainlist | |
| 65265. |
What is sublimationDrop some thanks . |
|
Answer» Sublimation is the transition of a substance directly from the SOLID to the gas STATE, WITHOUT PASSING through the liquid state. |
|
| 65267. |
Avipathi Bindu kise kahate Hain |
|
Answer» type the above text I sent you a problem with the FOLLOWING are the BENEFITS of SPECIAL shape of the following are the benefits of y and SUBSCRIBER DETAILS please I am a |
|
| 65268. |
Di doors!Describe the procedure to make the sample of the following:1 Ektara OR a toy telephone2 A simple electroscope |
| Answer» HOPE it will be HELPFUL THANKS | |
| 65269. |
(b) in dispersive materials, the angle of refraction for a light depends on the wavelength of the light. Does the angle of reflection from surface of the material depend on the wavelength? |
| Answer» | |
| 65270. |
3. You are given five 10ohm resistors. a) what is the maximum resistance obtained by combaining these resistors b) what is the minimum resistance obtained by combaining these resistors. |
| Answer» TION:UFH NEWS FATEHPUR मनुष्य जीवन में संतोष का बड़ा महत्व होता है। संतोष मनुष्य को ईश्वर के निकट पहुंचाकर मोक्ष का मार्ग प्रस्तत कर देता है। लेकिन यह बाजार में नहीं बिकता है बल्कि यह आत्मा से मिलता है। संतोष और आत्मसंतोष दोनों अलग होते हैं और दोनों में जमी आसमा का अंतर होता है।आत्मसंतोष ही आत्मतुष्ष्टि होता है और संतोष सहनशीलता इंसानियत ईश्वरवादी होने का परिचायक होता है। मनुष्य को जीवन में जल्दी संतोष नहीं मिलता है और उसकी मृगतृष्णा का कभी अंत नही होता है।जिस मनुष्य की मृगतृष्णा तृप्त नही होती है उसका अंत हो जाता है। संतोष वह अमूल्य निधि है जिसके आगे संसार की सारी निधियां बेकार हो जाती हैं। संतोष आने के बाद सारे धन दौलत मिट्टी के समान हो जाते हैं।कहा भी गया है कि -" गोधन गजधन बाजधन और रत्न धन खान, जब आवै संतोष धन, तब सब धन धूरि समान"। आजकल मनुष्य के पास सब कुछ हैं फिर भी उसे संतोष नही मिल रहा है।मनुष्य निन्नाबें को सौ करने में लगा है और वह पूरे नहीं हो पा रहे हैं।फलस्वरूप उसे संतोष नही मिल पा रहा है।लोग फुटपाथ से महलों में पहुंच गये हैं और टके टके के मोहताज करोड़पति अरबपति दुनिया के अमीरों की लाइन में नम्बर वन हो गये हैं फिर भी अभी उन्हें संतोष नही मिल पा रहा है।संतोष पाने के लिए लोगों को रात में नींद की गोलियां खानी पड़ रही हैं। | |
| 65271. |
A blue lamp emits light of wavelength 6.6 x 1014 Hz. If the lamp is rated at 40 W and 8% of the energy appears as emitted light, the number of photons it emits per second is |
|
Answer» शब्दांचे वचन बदला.i) तिकीटiii) आगगाडीii) प्रवासiv) गर्दी |
|
| 65272. |
A wire of resistance 4 ohm is drawn 1 ) by twice it's original length . Calculate new resistance in each case |
|
Answer» a wire of resistance 4 ohm is DRAWN (a) to twice its ORIGINAL ... Calculate the new resistance in each CASE. 2 ... 4/R₂=1/4Top ANSWER |
|
| 65273. |
Question: On what factors does the value of the constant K=1/4π€° depend? |
| Answer» | |
| 65274. |
How the mass of a body is measured by beam balance |
|
Answer» The beam balance is a device used for the determination of the mass of a BODY under gravitation. Beam balance is used for HIGH precision MEASUREMENTS like masses up to 250g, it consists of a pair of SCALE pans one at each end of a rigid beam. |
|
| 65275. |
A steel wire of length 6 m and cross-sectional area 3.0 × 10–5 m2 stretches by the same amount as a copper wire of length 4 m and cross-sectional area of 5.0 × 10–5 m2 under a given load. What is the ratio of the Young’s modulus of steel to that of copper ? |
| Answer» TION:here the ANSWER HOPE is is HELPS you THANKYOU | |
| 65276. |
Figure1 shows a pan balance with boxes P and Q in its pans.Figure2 shows how the balance looks when the pans are empty. Which of the boxes is heavier? |
|
Answer» i THINK dExplanation:becuz we cant say without SEEING in real LIFE...i HOPE you liked my answer PLEASE mark me as brainelist |
|
| 65277. |
The refractive index for the glass in the prism is 1.6 Calculate the critical anghe for the glass in this prism |
|
Answer» if the glass prism has a REFRACTIVE index of 1.6, what is the critical angle of the glass? 9. The prism SHOWN in question 7 is a 450 prism, and LIGHT is totally internally REFLECTED when it HITS the surface at 450....Seconds.c) r = sin nsin i |
|
| 65278. |
Solids transfer heat by |
|
Answer» The answer is conductionExplanation:Solids TRANSFER heat by PASSING one point to another point through CONDUCTION. |
|
| 65279. |
7. Which of the following substances has the greatest density? (i) aluminium (ii) water (iii) oxygen (iv) air. |
|
Answer» AluminiumExplanation:Because it is SOLID and solid have HIGH DENSITY |
|
| 65280. |
The towers P and Q, erected on the level ground, are respectively 25 m and 80 m high Tower Q is due west of tower P. A steel rope is connected between the t towers P and Q which has an angle of depression of 25 from Q. A commando (C) hanging on a 5 m long vertical steel support attached to the steel rope, slides down along the rope and shoots a target (T) which is moving at a height of 15 m above the ground. The commando is at a height of 50 m above the ground and the target is 20 m due cast of Q at the time of hitting the target. Using the principles of projections, determine at what angle the commando should shoot and what is the true distance between the commando and the target at the time of hit? Assume the rope and the path of the bullet to be straight lines |
|
Answer» ers P and Q, ERECTED on the level ground, are respectively 25 m and 80 m high Tower Q is due west of tower P. A steel rope is connected between the t towers P and Q which has an angle of depression of 25 from Q. A commando (C) hanging on a 5 m long vertical steel support attached to the steel rope, slides down along the rope and shoots a target (T) which is moving at a height of 15 m above the ground. The commando is at a height of 50 m above the ground and the target is 20 m due cast of Q at the TIME of HITTING the target. Using the principles of projections, determine at what angle the commando should shoot and what is the TRUE distance between the commando and the target at the time of hit? Assume the rope and the path of the bullet to be straight linesExplanation:The towers P and Q, erected on the level ground, are respectively 25 m and 80 m high Tower Q is due west of tower P. A steel rope is connected between the t towers P and Q which has an angle of depression of 25 from Q. A commando (C) hanging on a 5 m long vertical steel support attached to the steel rope, slides down along the rope and shoots a target (T) which is moving at a height of 15 m above the ground. The commando is at a height of 50 m above the ground and the target is 20 m due cast of Q at the time of hitting the target. Using the principles of projections, determine at what angle the commando should shoot and what is the true distance between the commando and the target at the time of hit? Assume the rope and the path of the bullet to be straight lines |
|
| 65281. |
calculate the distance and displacement of a car completes 7 revolutions around a circular track of radius 21m |
|
Answer» The radius of the CIRCLE= r(i) When it completes half circle:-(Refer to Image 1)DISTANCE= 2circumference=22πrDistance= πrDisplacement= r+r=2r(ii) When it completes 3/4th of the circle:-The distance covered= 43(CIRCUMFERENCE)⇒43(2πr)=23πrThe displacement= AB (Refer to Image 2)By using pythagoras theoremAB2=r2+r2⇒AB2=2r2⇒AB=2rDisplacement= 2rDistance= 23πr |
|
| 65282. |
Where the 2022 olympic game held ？make list of indian athletes qualified for 2021 olympics please answer me |
|
Answer» tion:We have finally arrived in July, which will see the Tokyo OLYMPICS taking place after it was postponed for a year amid soaring coronavirus infection rates and lockdowns across the world.With the mercury of EXCITEMENT soaring new high, Indians are weaving high hopes around their star athletes to shine at the biggest sporting EXTRAVAGANZA in the world.So far, India has won 28 medals in 31 editions of the summer games, the Indian contingent has set sights on higher goals. We are harbouring a collective attitude of optimism and striving to heighten our medal haul. So far, the London Olympics in 2012 has proven to be India's best show at the Games with our athletes raking up six medals. With a total of 120 members, here's a look at the athletes who have qualified for Tokyo Olympics.Mark as brain LIST |
|
| 65283. |
An object is kept at a distance of 120 cm from a spherical glass surface (and=1.5, radius of curvature= 24) image distance is: a) 120 cm b) 60 cm c) 140 cm d) 80 cm |
| Answer» | |
| 65285. |
Steel bars of lengths 3m are use for construction of a rail line. If the linear expansivity of the steel is 1.0×10restu the paper of -5 calculate the safety gap that must be left between successive bars if the highest temptature expected is41°c. |
| Answer» ELY FAMILY and ttuiggdfb | |
| 65286. |
Calculate the angle of deviation of a plane if the incident angle is 60 |
| Answer» TION:Ray of light FALLS on plane mirror at an angle of 60° from the mirror. The angle of DEVIATION will BETHE deviation produced is 180- 2i= 180-120=60.yes. | |
| 65288. |
Please give the answer fast. I will mark you the brainiest for sure |
|
Answer» Given, VOLTAGE V = 10 VThree 1 ohm resistance are CONNECTED in parallelso, and theree 2 ohm resistance are connected in parallel . So,again,We KNOW that, |
|
| 65289. |
Please give the answer fast |
| Answer» IST Rp =1/ R1 + 1/R2 + 1/R3 Rp = 1/1 + 1/1 + 1/1Rp = 3....In second case,2nd Rp = 1/2+1/2+1/2 = 3/2 = 1.5Now, Total resistance = Rs = 1st Rp + 2nd RpRs = 3 +1.5= 4.5By APPLYING ohm's law we have,V = IRI = V/RI = 10/4.5 = 2.22 AmpereHence, The total resistance = 4.5 Ω and total CURRENT = 2.22 AmpereExplanation:Hope it helps!! | |
| 65290. |
Reduce, reuse and ______________ should be our mantra! |
| Answer» REDUCE, REUSE and RECYCLE should be our MANTRA!_________________________________. | |
| 65291. |
Two capacitors are joined in series as shown in figure. The area of each plate is A. The equivalent of the combination is - |
|
Answer» i not KNOW neeheheheehhuuhss |
|
| 65292. |
____________ is a safe place when it rains with thunder. |
|
Answer» A car or other enclosed metal structure is the safest place to be in a thunderstorm. FAILING that, a DITCH, trench or group of SHRUBS of UNIFORM height is BETTER than nothing. |
|
| 65293. |
State the formula linking critical angle and reflective index. |
|
Answer» tical angle = the INVERSE function of the sine (refraction index / incident index). REFRACTIVE Index - N = C / VHᴏᴘᴇ ɪᴛs ʜᴇʟᴘs ʏᴏᴜ ❤ |
|
| 65294. |
The circumference of a circle substance and angle at the centre is |
|
Answer» Hlo here is your ANSWEREXPLANATION:The angle subtended by an ARC at the CENTRE is TWICE the angle subtended at the circumference . More simply, the angle at the centre is double the angle at the circumferenceI HOPE IT HELPS YOU(◠‿◕) |
|
| 65295. |
The two points of a wire are kept at potentials of 10V and 40V. If the resistance of wires is 30 Ω. Then find the current through the wire. |
|
Answer» 1 A mark as BRAINLIEST Explanation:here, POTENTIAL DIFFERENCE (V) = 40 - 10 = 30 V resistance (R) = 30 Ωthen, Current (I) = V/R = 30/30 = 1 A |
|
| 65296. |
The ratio of receptors to bipolar cells to ganglion cells is within the fovea of eye (1) 2:1:1 (2) 2:3:1 (3) 1:1:1 (4) 1:2:3 |
| Answer» HOPE it HELPS you. | |
| 65297. |
Find the fifth rooy of 0-0076. |
| Answer» HELLO FRIEND,let x = (0.0076)1/5log x= LOG (0.0076)1/5=1/5 log ( 0.0076)BAR= 1/5 ( 3.8808)bar= 1.5762then antilogx= 0.3769...hope it HELPS u | |
| 65298. |
Tabulate the periodic trends with respect to period and group |
|
Answer» Periodic TRENDS arise from the changes in the atomic structure of the CHEMICAL elements WITHIN their respective PERIODS (horizontal ROWS ) and |
|
| 65299. |
Thanks @Athrava, Musical Kudi , Its Magician, minyoongi28, yash... Who are U It's Magician?? |
|
Answer» you can EXPRESS TERMINATING NUMBERS to rational numbers but you can't express non terminating numbers to rationnal numbers |
|
| 65300. |
Prove malenatically Define absolute units of force in CGS as well as SI system. |
| Answer» E unit of force in the CGS system is DYNE and in SI system is Newton (N). ... One Newton: When a body of mass 1 KG moves with an acceleration of 1 ms−2, then force acting on the body is said to be one newton. OR. That force is said to be one newton, which producers an acceleration of 1 ms−2 in a body of mass 1 kg. | |