InterviewSolution
Saved Bookmarks
InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your Science knowledge and support exam preparation. Choose a topic below to get started.
| 3801. |
does not glow in the setup shown in Fig. 14.10. List the possiblereasons. Explain your answer.Fig. 14.1 |
| Answer» <p>thank you</p> | |
| 3802. |
The bulb does not glow in the setup shown in Fig. 14.10. List the possiblereasons. Explain your answer.4.Fig. 14.10o |
| Answer» | |
| 3803. |
Carry out the following ActivityTake about 2 g barium hydroxide in a test tube. Add 1 g of ammonium chloride and mixwith the help of a glass rod. Touch the bottom of the test tube with your palm. What do youfeel? Is this an exothermic or endothermic reaction? |
| Answer» <p>it is an exothermic because if we touch the test tube it will be hot so it is exothermic reaction </p> <p>Exothermic reaction is the right answer </p> <p>Exothermic reaction we will get for the answer </p> | |
| 3804. |
Questions-1) Explain the importance of pH testing in daily life? |
| Answer» | |
| 3805. |
2) With the help of pH state the importance of soil testing in agriculture field? |
| Answer» <p>Soil pH is a measure of the relative acidity or alkalinity of the soil solution, and is expressed on a 14-point scale. Soil acidity increases as pH drops below 7 (neutral pH) and soil alkalinity increases as pH increases above 7.</p><p>Soil pH affects many aspects of crop production, including nutrient availability, potential for metal toxicity, efficacy and degradation of soil-applied herbicides, and nitrogen fixation by leguminous crops.</p> | |
| 3806. |
9ULUDL LLLLu Ligue2. Ice melts at 0°C. Water will freeze at(a) 0°C(b) 5°C(c) 50°C(d) 100°C |
| Answer» <p>Ice melts at 0°c. Water melts at 0°c</p> <p>Answer is a 0 degree centigrade </p> | |
| 3807. |
2) With the help of pH state the importance of soil testing in agriculture field ? |
| Answer» | |
| 3808. |
Two block of masses M1 and M2 are connected a1 in right direction what will be the magnitude in M2 |
| Answer» | |
| 3809. |
\frac { x } { x + 1 } + \frac { x + 1 } { x } = 2 \frac { 1 } { 12 } , x |
| Answer» <p>thanks </p> | |
| 3810. |
1. What is the gravitaticentre of the Earth ?onal acceleration of a spaceship at a distance equal to two Earth's radius fromAns. 2-45 m/ |
| Answer» | |
| 3811. |
3. Pressure exerted by air is due to its:(a) mass(b) weight(c) space(d) none of these |
| Answer» <p>Atmospheric pressure is exerted by the weight of the air in the atmosphere. Atmospheric pressure is defined as the force per unit area exerted against a surface by the weight of the air molecules above that surface</p> <p> (b) weight is the answer</p> | |
| 3812. |
4. Write a brief note on mainframe computers. |
| Answer» <p>Mainframe computersormainframes(colloquially referred to as "big iron")[1]arecomputersused primarily by large organizations for critical applications; bulk data processing, such ascensus, industry and consumer statistics,enterprise resource planning; andtransaction processing. They are larger and have more processing power than some other classes of computers:minicomputers,servers,workstations, andpersonal computers.</p><p>The term originally referred to the large cabinets called "main frames" that housed thecentral processing unitand mainmemoryof early computers.[2][3]Later, the term was used to distinguish high-end commercial machines from less powerful units.[4]Most large-scale computer system architectures were established in the 1960s, but continue to evolve. Mainframe computers are often used as servers.</p> | |
| 3813. |
er lab, there are 3 computers for every 6 stademts Howcomputers will be needed for 24 stadents? |
| Answer» <p>6 students need 3 computers=> 24 students need (3*4) = 12 computers.</p><p>PLEASE HIT THE LIKE BUTTON</p> | |
| 3814. |
Find the volume of a sphere whose radius is(i) 7 cm(ii) 0.63 m |
| Answer» <p>V=4/3πr^3hence when r=7cmV=1436.76cm^3r=0.63cmV=1.05cm^3</p> | |
| 3815. |
7, Find two numbers such that one of them exceeds the other by 18 and their sum is 92.8. One out of two numbers is thrice the other. If their sum is 124·ftnd the numbers. |
| Answer» | |
| 3816. |
HOTS1. What do you think would happen if we did not have an electric switch in a circuit?2. What is inside a cell? What is its significance? |
| Answer» <p>If there would be no switch in circuit than we cant cut the supply of electricity whenever we want</p> <p>if there is no switch in the circuit we cannot control the flow of current that is we cannot make it start or stop.</p> <p>in this condition circuit is completed by cell</p> <p>there are very power electrod</p> | |
| 3817. |
oineunu leterotrophic modec) A symbiotic relationship between an alga and a fungus |
| Answer» <p>A lichen is an organism that results from a mutualisticrelationshipbetween afungus and a photosynthetic organism.</p> | |
| 3818. |
1.Which part of the plant is positively phototropic? |
| Answer» <p>Shoots, or above-ground parts of plants, generally display positive phototropism—they bend toward the light.</p> | |
| 3819. |
any one group of micro-organisms from which antibiotics canbe extracted. |
| Answer» <p>Two groups of microorganisms that produce antibiotics are Bacteria (e.g, Streptomyces producesStreptomycin) and some Fungi (e.g,Penicillinproduced by Penicillium moulds).</p> | |
| 3820. |
(K) forme a suitable illustration of Dobereiner'slaw of triads.r ithium sodium and potassium form |
| Answer» <p>Dobereiner’s law of triads states that, the atomic mass of the middle element of a triad is the arithmetic mean of the atomic masses of the other two elements.Example:In the triad of lithium, sodium and potassium. The atomic mass of lithium is 7 and the atomic mass of potassium is 39. The average of masses of lithium and potassium gives atomic mass of sodium 23. </p> | |
| 3821. |
5. In which of the following processes is light absorbed?(a) Sublimation(c) Photosynthesis(b) Burning(d) Rusting |
| Answer» | |
| 3822. |
What is meant by electric polarisation? |
| Answer» <p>Polarization occurs when an electric field distorts the negative cloud of electrons around positive atomic nuclei in a direction opposite the field. This slight separation of charge makes one side of the atom somewhat positive and the opposite side somewhat negative.</p> | |
| 3823. |
In what season do Apple commonly mature |
| Answer» <p>Autumn season </p> | |
| 3824. |
Anushtha saw a steel clip at the bottom of a very shallow puddle of water. Sheused a magnet, to take out this clip, without wetting her hands, or the magnet.Describe how she must have done this. |
| Answer» <p>Magnet attraction happens from a distance if the power of the magnet is strong. So Anushka could pull the steel clip out of water without wetting anything.</p> | |
| 3825. |
darw a labelled diagram of a mature embroy sac. |
| Answer» | |
| 3826. |
Short answer type questions:1.What will happen if there are no platelets in blood?What are unisexual flowers? Name some of them.How do forests prevent floods?2.3. |
| Answer» <p>1. If there are no plateletsin theblood, then theblood would notbe abletoclot. A clot is formed because ofplatelets.Theyreleaseblood clotting chemicals at the site of injury. These chemicals form a clot and prevent further bleeding.</p><p>2. Unisexual flowerAflowerthat possesses either stamens or carpels but not both. A plant may beunisexual(dioecious), possessing only maleflowersor femaleflowers; or it may be monoecious with male and female reproductive organs borne in the samefloweror in differentunisexual flowersbut on the same plant.Coconut flowers, Papaya, Watermelon, Cucumber, Maize, White mulberry, Musk melon</p><p>3. During heavy rains, trees reduce the risk offlooding. There are two major ways in which trees provide protection againstflooding. Experts say that woodland acts as a barrier to floodwater, while trees alsopreventsoil erosion, reducing sediment going into rivers and increasing water absorption into the ground</p> | |
| 3827. |
Amercury thermometer is placed in a gravity free hall without touching anything. As temperature risesmercury expands and ascend in thermometer. If height ascend by mercury in thermometer is h thenbywhat height centre of mass of "mercury and thermometer" system descend?hish io further kent on a |
| Answer» <p>Here thermometer is placed in gravity free region</p><p>So there is no external force on the system.</p><p>When there is no force on the system its center of mass will retain its position and does not move if the whole system is initially at rest.</p><p>So here the displacement of center of mass of the system will be ZERO.</p> <p>Sahi hai sir</p> | |
| 3828. |
I14Alfmale and female flower are present on separate plants, it is calleda) Monoeciousc) Unisexualb) Dioeciousd) Bisexual |
| Answer» <p>Answer: b)DioeciousExplanation:A dioecious plant is one where the male and female reproductive systems occur on separate plants. While both plants produce flowers, one plant has the male reproductive parts and the other plant has the female parts.</p> | |
| 3829. |
B-4. A mercury thermometer is placed in a gravity free hall without touching anything. As temperature risesmercury expands and ascend in themometer. If height ascend by mercury in themometer is h then bywhat height centre of mass of "mercury and thermometer" system descend? |
| Answer» <p>Here thermometer is placed in gravity free region</p><p>So there is no external force on the system</p><p>when there is no force on the system its center of mass will retain its position and does not move if the whole system is initially at rest</p><p>So here the displacement of center of mass of the system will be ZERO</p> | |
| 3830. |
Which of the following is not a continuous drier?a) Drum drierc) Tunnel drier20.b) Spray drierTray drier |
| Answer» <p>Tray drying refers to dehydrating small pieces of produce by exposing them to a source of hot ... space than canned foods and do not require a constant power supply like frozen foods.</p> | |
| 3831. |
Flooding resultsa) High tray efficiency(c) High gas velocityb) Low tray efficiencyd) Good contact between the fluids |
| Answer» <p>Too high a gas velocity will lead to a condition known as flooding whereby the liquid filled the entire columnhence option c</p> | |
| 3832. |
any five animals names |
| Answer» <p>1. tiger2. lion3. giraffe4. zebra5. monkey</p> | |
| 3833. |
2. Name the flap that closes the Whilupip3. Which muscular part of the body present in the chest cavity helps air to be breathod |
| Answer» <p>Themuscular part of the bodywhich ispresent in the chest cavitywhichhelpsinbreathingis one and only the DIAPHRAGM.</p> | |
| 3834. |
Exercise1. What is a habitat? |
| Answer» <p>Ans :- In ecology, a habitat is the type of natural environment in which a particular species of organism lives. It is characterized by both physical and biological features. A species' habitat is those places where it can find food, shelter, protection and mates for reproduction.</p> | |
| 3835. |
liarksGroup-Aswer the following questions:AnThe unit for electric intensity is:(a) Nm-1(b) Vm-1 |
| Answer» <p>The SI unit of electric field strength is Newtonspercoulomb(N/C) or volts per meter (V/m).</p> <p>The answer is option (b)</p> | |
| 3836. |
ConceptaIf the tension in the string in figure (6-E3) is 16 N andthe acceleration of each block is 0-5 m/s', find the frictioneoefficients at the two contacts with the blocks.2 kg30° |
| Answer» | |
| 3837. |
five sence organ |
| Answer» <p>The sense organs are eyes, ears, tongue, skin and nose</p> | |
| 3838. |
2) Which of the following parts areedible in a banana plant?A)FruitB)StemC) FlowerD) All the aboveE)0 of these |
| Answer» <p>option D All of the above is the correct answer of the following question. which means fruit, stem & flower are the edible parts of banana plants.</p> <p>option (D) is the right answer</p> <p>0ption D is correct answer because all the content is in banana plant</p> <p>flowers , stem, fruit</p> <p>option dis correct</p> <p>option d is the right answer </p> <p>option d is right one....</p> <p>Option d) All of the above is the answer</p> | |
| 3839. |
Which of the following is called post-mitoticgap phase? |
| Answer» <p>G1 is the first stage to follow mitosis in the cell cycle, and is the period in which the cell performs its normal functions for the body before it begins preparing to divide again. A liver cell (hepatocyte) in G1, for example, would be synthesizing blood proteins, processing carbohydrates, secreting bile, and so forth.</p><p>G0 (G-zero) refers to a stage in which cells have left the cell cycle and ceased dividing. Examples include mature bone cells (osteocytes), neurons, and fat cells (adipocytes), which no longer divide. They, too, carry on their bodily functions, but never advance to the S phase where other cells replicate their DNA and begin preparing for the next mitosis.</p> | |
| 3840. |
The amount of NAOH in 750ml of 0.2M solution(Molecular weight=40)is |
| Answer» <p>M=n/v...n=w/m...m=naoh mass =23+1+16=40...put values of M=0.2 V=0.75Land then m and calculate w</p> | |
| 3841. |
The centre of mass of a system of three particlesof masses 1g, 2g and 3g is taken as the origin ofa coordinate system. The position vectorfourth particle of mass 4g such that the centre ofmass of the four particle system lies at the point(1, 2, 3,) is a(i 2j+3k), where a is a constant.The value of a is:-of a10 |
| Answer» | |
| 3842. |
A very large number of particles of same mass m are kept at horizontal distances of 1m, 2m, 4m, 8mand so on from (0, 0) point The total gravitational potential at this point (0, 0) is(A)- 8G m8-3.(B)-3G m(C)-4G m(D)- 2G m |
| Answer» <p>Gravitational potential at pointris given by,</p><p>V = - G*m/r</p><p>According to the problem the gravitational potential by infinite masses at the origin is,</p><p>V = -G*m (1 + 1/2 + 1/4 + 1/8+...)</p><p>This is a geometric series with ratio 1/2</p><p>So,</p><p>V = -G*m*2. As(sum of infinite terms of G.P. = 1/(1-1/2 ) = 2</p><p>= - 2*G*m</p> | |
| 3843. |
11. A concave lens of focal length 15 cm lorms all illais the object placed from the lens? Draw the ray diagram. |
| Answer» | |
| 3844. |
Namita travels 20km 50mevery day. Out of this she travels10 km 200 m by bus and the rest by auto. How muchdistance does she travel by auto? |
| Answer» | |
| 3845. |
Bample 11.7 Two girls, each of weight400 N climb up a rope through a heightof 8 m. We name one of the girlsthe other B. Girl A takes 20 s while Btakes 50 s to accomplish this task.What is the power expended byeach girl?A and |
| Answer» | |
| 3846. |
At which part does the arm rotate? |
| Answer» <p>The arm rotates on the round pit-like structure.</p> | |
| 3847. |
nte the halp at a diagean exphin |
| Answer» <p>structure</p> | |
| 3848. |
Different types of habitats with definetion , examples , diagram and characteristics |
| Answer» <p>1</p> <p>2</p> <p>3</p> | |
| 3849. |
nthy dont nte ure copper |
| Answer» <p>No,copper wirecannot beusedto make thefilamentof an electric bulb ascopper wirehas very low resistance.</p><p> Therefore, the bulb will not glow ifcurrentis passed. It would also melt - thefilamenthas to be white-hot to be anyuse</p> | |
| 3850. |
1. Distinguish between aquatic and terrestrial habitats.ho conditions |
| Answer» <p>The difference between aquatic and terrestrial habitats is that the former means that an animal lives in water, while the latter means that an animal lives on land. For example, a bear's natural habitat is terrestrial while a fishes natural habitat is aquatic.</p><p>Terrestrial Habitat contains only land. Animals that live only on land are called terrestrial animals. Human beings also live on land.</p><p>Aquatic animals live in water while terrestrial animals live on land. Aquatic animals use 20% of energy to obtain oxygen while terrestrial only use 1-2%.</p> | |