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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.
| 3351. |
Defination of boiling |
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Answer» Explanation: Boiling is the rapid vaporization of a liquid, which occurs when a liquid is heated to its boiling POINT, the TEMPERATURE at which the VAPOUR PRESSURE of the liquid is equal to the pressure exerted on the liquid by the SURROUNDING atmosphere. |
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| 3352. |
Draw a labelled diagram of spring balance |
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Answer» REFER to the attachement for diagram hope it helped if yes then dont FORGET to thank and RATE |
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| 3353. |
Pls answer every question pls pls |
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Answer» 1. A connected group of (one or more) electrochemical cells that store ELECTRIC charges and generate direct current (DC) through the conversion of chemical energy into electrical energy. See also common battery, DC, electricity, energy, and local battery. 2. An electric fuse is a device that is used to protect electric circuits and electric APPLIANCES against high current caused by short - circuiting or overloading due to withdrawal of large current. A fuse is a short piece of wire made of a material of high resistance and low melting point. Sorry i only KNOW some.
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| 3354. |
A beam of light changes direction when it travels from one transparent medium to another because it’s direction changes. True/False |
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Answer» the the answer is yes Explanation: |
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| 3355. |
A beam of light changes direction when it travels from one transparent medium to another because it’s dista |
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Answer» Answer: Refraction is the bending of light RAYS. Normally, light travels in a straight LINE, and changes DIRECTION and speed when it passes from one transparent medium to another, such as from air into glass. ... However, when light ENCOUNTERS a transparent material, it SLOWS down Explanation: This may help you friend. |
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| 3356. |
Define the term galxy |
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Answer» Answer: A galaxy is a huge COLLECTION of gas, dust, and billions of stars and their solar systems. A galaxy is held together by gravity. Our galaxy, the Milky Way, also has a supermassive black hole in the middle. ... Some scientists THINK there could be as many as one hundred billion galaxies in the universe.As for how our galaxy got its name, it is indeed because of its milky appearance as it stretches across the sky. ... The ancient Romans called our galaxy the Via Lactea, which literally means “The Road of Milk.According to the best estimates of astronomers there are at least one hundred billion galaxies in the observable universe. They've counted the galaxies in a particular region, and multiplied this up to estimate the number for the whole universe.The Greeks coined the term "galaxies kuklos" for "milky circle" when describing the Milky Way. The Milky Way was a FAINT band of light, but they had no idea what it was composed of. When GALILEO looked at the Milky Way with the first telescope, he determined that it was made up of numerous stars.Superclusters form massive structures of galaxies, called "filaments", "supercluster complexes", "walls" or "sheets", that may span between several hundred million light-years to 10 billion light-years, covering more than 5% of the observable universe. These are the largest structures known to date. hope it HELPS u mark me as brainliest Explanation: |
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| 3357. |
Define the term Galaxy |
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Answer» a system of millions or billions of STARS, together with gas and dust, HELD together by gravitational attraction. hope it will help you PLEASE make the brainliest Explanation: |
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| 3358. |
Which temperature is hotter : 25 C or 68 F |
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Answer» Answer: 25 C is hotter plz FOLLOW me and MARK me BRAINLIEST |
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| 3359. |
A. Choose the correct optionThe moment of force of magnitude 1 Nm is equal tob. 10 dyne cm.a. 10' dyne cmd. 10 dyne cmc. 10 dyne cm.2.The pressure exerted by a solid on a table top depends on theb. mass of solida. area of contactd. all of thesee direction in which it exerts force.3. If a force of 100 N acts perpendicularly on an area of 2 m', what is the presaa. 98 Pab. 102 Pad. 200 PaD.c. 50 Pagetables have sharp edges to |
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Answer» Substitute the conversations in 1 newton = 1 KG m s^(2)Write the relation ... (d) Write in place of 1 g CM s^(-2) as 1 dyne. ... `SI` unit and `CGS` unit of QUANTITY vary by ... Substitute the conversations in 1 newton = 1 kg m s^(2)Write the relation ... (d) Write in place of 1 g cm s^(-2) as 1 dyne. ... `SI` unit and `CGS` unit of quantity vary by ... |
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| 3360. |
A train is moving towards East with a velocity of 72 kmph. Its velocity is changed to 90 kmph towards West. Then the change in velocity of the train is |
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Answer» Answer: 18 kmph Explanation: 90kmph-72kmph =18kpmh |
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| 3361. |
The moment of force of magnitude 1 Nm is equal to |
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Answer» Explanation: A newton meter (N·m) is a DERIVED unit of TORQUE (also called “MOMENT” or “moment of force”) in the SI system. ONE newton meter is equal to the torque resulting from a one newton force applied PERPENDICULARLY to a one meter long moment arm. |
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| 3362. |
a car moving on a staraight path covers a distance of 1 km due to east in 100s.what is i)speed ii)the velocity of the car |
Answer» AnsWer :i) 10 m/s. ii) The velocity of the toward the east at Speed of 10m/s. Given :Formula REQUIRED :
Solution :
i) We have formula, ii)
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| 3363. |
MatchA. B.VIT/MIN DEFICIENCY. DiseasesVIT.A BeriberiVIT.B Bone and tooth Decay VIT.C. rickets VIT.D. AnaemiaIodine. ScurvyCalcium. GoiterIron. Loss of vision |
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Answer»
Vitamin A - LOSS of vision Vitamin B - Beriberi Vitamin C - Scurvy Vitamin D - Rickets Iodine - Goiter Calcium - Bone and TOOTH Decay Iron - Anaemia
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| 3364. |
How can you find the lenght of a rectangular body if you know its area and breadth without knowing the breadth |
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Answer» EASY bro, We know, area of a rectangular = length X breadth therefore, we can SAY that, length = area/breadth and that's it. if you still didn't get it, just MESSAGE me OK? I will explain to you again |
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| 3365. |
. Aaron ran 500 metre in 100 Seconds. Find the speed in km per hourEXPLAINEXPLAINEXPLAINEXPLAINEXPLAINEXPLAINEXPLAINEXPLAINEXPLAINEXPLAINEXPLAINEXPLAINEXPLAINEXPLAINEXPLAINEXPLAINEXPLAINEXPLAINEXPLAINEXPLAINEXPLAINEXPLAINEXPLAIN |
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Answer» Answer:5m/s Explanation: we know the formula of speed that is speed=distance/time Distance= 500m Time=100s Therefore speed=500m/100s =5m/s hope this HELPS you if this REALLY helps you please mark vs BRAINLIEST and GIVE me thanks have a good day |
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| 3366. |
The dimensional formula of change in velocity |
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Answer» Answer: The dimensional formula is defined as the EXPRESSION of the PHYSICAL quantity in terms of its basic unit with proper dimensions. In SIMPLE words velocity can be EXPLAINED as speed in specific direction. Mathematically, Velocity = displacement / time . Dimensional Formula of Displacement = M0L1T0 Explanation: hope it will HELP you |
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| 3367. |
How does the relative density of a substance help us in determining whether it will float orsink in water? |
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Answer» If an OBJECT has a HIGHER density than the fluid it is in (fluid can mean liquid or gas), it will sink. If it has a lower density, it will float. Density is determined by an object's mass and VOLUME. If two objects TAKE up the same volume, but have one has more mass, then it also has a higher density. |
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| 3368. |
5.A cotton bundle and an iron piece of equal mass are weighed in air by a spring balance. Thereading of weight is more fora) Ironb) Cottonc) Both have same reading as they have same massd) Can't be compared |
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Answer» ANSWER: both have same READING Explanation: both have same reading as the MASS is same |
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| 3369. |
4) If a body of mass ‘m' is in a fluid. If the body suspends in the fluid, thena) mg = Bb) mg Bd) any of these |
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Answer» Answer: questions in the fact that in any given fluid, pressure increases with depth. When an object is immersed in a fluid, the upward force on the bottom of an object is greater than the downward force on the top of the object. The result is a net upward force (a BUOYANT force) on any object in any fluid. If the buoyant force is greater than the object’s weight, the object will rise to the surface and float. If the buoyant force is less than the object’s weight, the object will sink. If the buoyant force equals the object’s weight, the object will remain suspended at that depth. The buoyant force is always present in a fluid, whether an object floats, sinks or remains suspended. The buoyant force is a result of pressure EXERTED by the fluid. The fluid pushes on all sides of an immersed object, but as pressure increases with depth, the push is stronger on the bottom surface of the object than in the top (as seen in ). You can calculate the buoyant force on an object by adding up the forces exerted on all of an object’s sides. For EXAMPLE, consider the object shown in. The top surface has area A and is at depth h 1 ; the pressure at that depth is: P 1 = h 1 ρ g , where ρ is the density of the fluid and g ≈ 9.81 m s 2 is the gravitational ACCELERATION. The MAGNITUDE of the force on the top surface is: F 1 = P 1 A = h 1 ρ g A . This force points downwards. Similarly, the force on the bottom surface is: F 2 = P 2 A = h 2 ρ g A and points upwards. Because it is cylindrical, the net force on the object’s sides is zero—the forces on different parts of the surface oppose each other and cancel exactly. Thus, the net upward force on the cylinder due to the fluid is: F B = F 2 − F 1 = ρ g A ( h 2 − h 1 ) Explanation: hope it help you |
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| 3370. |
find the the scientific notification of the population in India was about 1027000000 in January 2000 |
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Answer» Answer: 1.027 X 10⁹ Explanation: 1027000000 1.027 x 10⁹ |
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| 3371. |
Sound needs meteral medium to propagate.sound can travel through vacume |
Answer» no SOUND can't travel through vacuum, it need a material MEDIUM..... mark as BRAINIEST |
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| 3372. |
Distance is a _________quantity will displacement is the__________quantity. |
Answer» distance is a SCALAR QUANTITY..displacement is a VECTOR quantity....mark as brainiest... follow up |
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| 3373. |
3. How many images are formed for a point object kenin between the two plane mirrors at rightangles to each other ? Show them by drawing a raydiagram |
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Answer» Answer: 3 images When TWO plane mirrors are KEPT perpendicular to each other as shown (O is the point OBJECT), 3 images will be formed Explanation: |
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| 3374. |
The motion of a freely falling body is an example of______________ motion. |
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| 3375. |
tractor moving with 18 kilometre per hour is_____________done card moving with 1500 metre per minute.. |
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Answer» Answer: 90km per hour Explanation: tractor moving 18 km but car moving 1500 metre per MINUTE 1 hour =60 minute 1500× 60=90km |
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| 3376. |
Motion of earth around the sun is an example of________ motion. |
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Answer» circular motion MARK as brainliest plz... |
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| 3377. |
A car starts at rest and travel a distant 20 metre in 1 second the car average speed is. |
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Answer» Answer: AVERAGE SPEED of the CAR is 20m/s. Explanation: As we know that formula for Average speed is Total DISTANCE covered/Total TIME Taken So , average speed = 20/1 m/s = 20m/s Answer→ Average speed of the car is 20m/s. _____________________________ |
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| 3378. |
Prepare a speech meant to be delivered in the morning assessment maintaining healthy habits in our daily life.can you please answer this question pls pls |
| Answer» CVR twas was the DAY I got to GO get my E to the correct who can get | |
| 3379. |
Knitting energy in liquid. |
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Answer» please mark this answer as brainliest answer Explanation: Liquids have more kinetic energy than solids. If you ADD HEAT energy to a liquid, the PARTICLES will move faster AROUND each other as their kinetic energy increases. Some of these particles will have enough kinetic energy to break their liquid bonds and escape as a gas (evaporation). |
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| 3380. |
What slows down transfer of heat into home in summer |
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Answer» Answer: you can see some 3 holes in top of your room . you MAY ask why it is kept the reason is heat or hot air is light and it can be in the top of the room so through that holes the hot air will go out hope it helps you be HOME be safe for more answer FOLLOW me |
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| 3382. |
A car travels along a straight road 100 m east then 50 m west. Find the speed and velocity of car |
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Answer» DISTANCE travelled is the total LENGTH of the PATH travelled by the car. D=100M+50M=150M Displacement is the linear separation between initial and final points. Here the car moved 100 m forward and then 50 m backward. Then, S=100M-50M=50M |
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| 3383. |
How many fundamental quantities are there in SI |
Answer» seven BASE quantitiesThe SI base units are the STANDARD units of measurement defined by the International System of Units (SI) for the seven base quantities of what is now KNOWN as the International System of Quantities: they are notably a basic set from which all other SI units can be derived Explanation: hope it will help you |
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| 3384. |
Which of the following is vector quantity. (a) Speed (b) Distance (c) Time (d) Acceleration |
Answer» ANSWER:d) ACCELERATION.. . . . . . follow MEH ♥️ |
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| 3385. |
Prepare a colorful advertisement of a wrist watch |
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Answer» Answer: wrist watch is a GOOD and low expensive U can BUY and we given guaranity it helpful to u |
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| 3386. |
a person walking on a rectangular track of sides 4m and 3m if he complete one round in 40 seconds find distance and displacement covered by him in 2 min 20 seconds |
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Answer» perimeter=2(4+3)m=24m.distance COVERED by him=700/3m |
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| 3388. |
A car moves 10m east and then 20m south find the distance anddisplacement caused by car |
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Answer» DISTANCE- 30m displacement- 10√5m |
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| 3389. |
A person can complete one round of asquare park of side 5m in 20 sec. whatis the distance and displacement atthe end of 1 minute to seconds |
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Answer» Answer: =5×3 =15m mark me as BRAINLEIST answer |
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| 3390. |
Ganesh said virtual image can be caught on the screen how do u analyse the statement. |
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Answer» Answer: |
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| 3391. |
a body is moving on a circular path of radius 7m what is the distance and displacment after it completes half revolution |
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| 3392. |
What is Motion and types of motion |
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Answer» Motion: A BODY is SAID to be in motion if it's POSITION changes with respect to time there's of motion are: 1. Translational 2. rotational 3. PERIODIC 4. non periodic |
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| 3394. |
Q:The working principle of a washing machine isA) reverse osmosisB) diffusionC) centrifugationD) dialysisQ:Nuclear sizes are expressed in a unit namedA) FermiB) AngstromC) NewtonD) TeslaQ:The speed of light will be minimum while passing throughA) waterB) vaccumC) airD) glassQ:Which of the following is not a vector quantity?A) speedB) velocityC) torqueD) displacementQ:The most suitable unit for expressing nuclear radius isA) microB) nanometreC) fermiD) angstromTwo electric bulbs marked 25W – 220V and 100W – 220V are connected in series to a 440Vsupply. Which of the bulbs will fuse?A) 25 WB) BothC) 100 WD) NeitherQ:An air bubble in water will act like aA) convex lensB) convex mirrorC) concave lensD) concave mirrorQ:Which of the following is not the unit of timeA) Parallactic secondB) Micro SecondC) Leap yearD) Solar dayAnswer these all the questions |
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Answer» the WORKING PRINCIPLE of WASHING MACHINE is CENTRIFUGATION |
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| 3395. |
STUDY QUESTIONSwith a piece of rock andy equipment. How will youits density? Diagrams notproceed to find its density? Diagramrequired.montally |
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Answer» bdjksk jdjduk jxhhskld bhujo jdjjx |
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| 3396. |
Write true or false. Correct the false statements.1. Rest and motion are relative terms.2. Rectilinear and curvilinear motions are two types of rotatory motion.3. During rotatory motion, all parts of the moving object move through the same distance in thesame interval of time.4 The motion of a cricket ball bowled by a spin bowler is an example of Oscilatory motion.5 Motion that repeats itself at regular intervals of time is called non-periodic motion. |
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Answer» EVERYTHING is true Explanation: |
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| 3397. |
Why the deaf man not hear the sound waves? |
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Answer» Explanation: beacuse its eardrum is DEFECTED so sound waves cant be HEAR due to sound is only hear through vibration if vibration not occur then u can't hear the sound. |
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| 3398. |
During an experiment, a signalfrom a spaceship reached theground station in five minutes.What was the distance of thespaceship from the groundstation? The signal travels at thespeed of light, that is, 3 x 108m s- |
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Answer» Answer: 48500m Explanation: formula=2d/t=s given that, s=3x108ms- t=5min=300s 2d=324x300 2d=97000 d=48500m |
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| 3400. |
A samosa appears to be cool outside but it is hot when we eat it. Why? |
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Answer» Answer: Reason for a samosa appears to be cool outside but it is hot inside: 1. The inside SUBSTANCES of samosa have more SPECIFIC heat. 2. So, it retains HOTNESS for a longer time. 3. therefore, appears to be cool outside, but it is hot when we eat it. Explanation: If you understood then please go to my Youtube Channel GIVE make me REACH 100 subscriber thank you And hope you understood my answers |
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