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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.
| 2001. |
Why what happened is something wrong dearquestion what is oxygen |
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Answer» Explanation: oxygen is an element needed for PRODUCING ENERGY INSIDE a HUMANS body |
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| 2002. |
Can speet of an object be negative?justify |
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| 2003. |
what is slope?if the perpendicular height and the base of a right angled triangle and 6cm and 3cm respectively, determine the slope of the triangle. |
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Answer» Answer: The slope equation says that the slope of a line is found by DETERMINING the AMOUNT of rise of the line between any TWO POINTS DIVIDED by the amount of run of the line between the same two points. In other words, ... Divide the difference in y-coordinates by the difference in x-coordinates (rise/run or slope). |
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| 2004. |
At what temprature density of water is maximum? why ? |
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Answer» At 4°C the DENSITY of the WATER is MAXIMUM. Its VALUE is 1000 kgm-³ |
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| 2005. |
एक प्रकाश बराबर कितना होता है |
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Answer» प्रकाश वर्ष (LIGHTYEAR), जो प्रव (LY) द्वारा चिन्हित करा जाता है, लम्बाई की एक मापन इकाई है। यह लगभग 95 खरब (9.5 ट्रिलियन) किलोमीटर की होती है। अन्तर्राष्ट्रीय खगोलीय संघ के अनुसार, एक प्रकाश वर्ष वह दूरी है जो प्रकाश अपने निर्वात में एक वर्ष में पूरा कर लेता है। ♡──━━━━━━⊱✿⊰━━━━━━──♡ |
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| 2006. |
A block of mass m is kept on a platform which starts from rest with constant acceleration g/2 upwards as shown in figure. Work done by normal reaction on block in time t is : |
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Answer»
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| 2008. |
Gravity is a _____________O Attractive force only O Both attractive and repulsive O Repulsive force only |
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Answer» answer 1 ATTRACTIVE FORCE only |
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| 2009. |
When can you say about the motion of an object if its speed-time graph is a straight 2line parallel to time axis? |
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Answer» Answer:When the slope of a speed-TIME graph is a STRAIGHT line parallel to the time axis.. Explanation: When the slope of a speed-time graph is a straight line parallel to the time axis, the object is moving with uniform speed. Since there is no CHANGE in the VELOCITY of the object (Y-Axis value) at any point of time (X-axis value), the object is SAID to be in uniform motion. MARK ME AS BRAINLIEST.. |
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| 2011. |
1.4 একক ভরের বস্তুর উপর অভিকর্ষ বল হল – GM M GM2 Gk (a) (b) (c) (d) GM R R2 GR2 R |
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Answer» I am not ABLE to UNDERSTAND the QUESTION |
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| 2012. |
Which of the following lenses would crime investigator prefer to use while searching for finger prints on the spot of robbery a. a convex lens of focal length 100cm B. A concave lens of focal length 100cm c.Convex lene of focal length 10cm d. a concave lens of focal length 10cm . C D, focal length 10cm con cave lene |
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Answer» Answer: |
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| 2013. |
A) conduction (i) Wood,plasticwool,air,water b) convection (ii) requires no mediumc) radiation (iii) solids d) conductors (iv) metals e) insulators (v) liquids |
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Answer» Answer: photosynthesis, the PROCESS by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to CONVERT water, carbon DIOXIDE, and MINERALS into OXYGEN and energy-rich organic compounds. |
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| 2014. |
Show that slope of distance time graph gives speedplz ans. quickly |
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Answer» A distance TIME graph has distance on its y axis and time on its X axis. Let D1 and D2 be distance covered by an object at time T1 and T2. now, this is CHANGE in distance upon change in time which is speed. hence it is so. |
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| 2015. |
Solve the question in the given attachment❑ Proper Solution❑ Spammers Stay Away |
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Answer» Answer: friend see the attachment Explanation: |
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| 2016. |
how much work is done in moving a charge of 3.15 coulomb across two points having a potential difference 15 volt |
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Answer» Answer: Expert Verified. The potential difference(p.d) between two POINT in an ELECTRIC circuit is defined as the AMOUNT of WORK done in moving a unit charge from one point to the other point. Hence, the work done in moving the charge is 45 J. |
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| 2017. |
Q.What is Fertilization? |
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Answer» the action or process of fertilizing an EGG or a female ANIMAL or plant, involving the FUSION of MALE and female gametes to form a zygote. |
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| 2018. |
draw the velocity time graph for any object with constant velocity and find distance for any time interval from graph (please answer it full) |
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| 2019. |
Find the integration of the following functions /{x^5dx{x^9dx{sib2xdx |
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Answer» uodjfjdufififydufjfifigkfkdifjckfigkgkdifkfiitog |
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| 2020. |
Causes of zero error in vernier callipers |
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Answer» ZERO error means when 0th devision of main SCALE is not coinciding with tha 0th devision of Vernier scale when two jaws of Vernier TOUCHING each other. So there will be error DUE to Zero so that's why it is called as Zero error. |
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| 2021. |
The plates of a capacitor are charged to a potential difference of 320 volt and are then connected to a resistor. The potential difference across the capacitor decays exponentially with time. After 1 sec, the potential difference between the plates of the capacitor is 240 V, then after 2 and 3 seconds the potential difference between the plates will be, respectively: (a) 200 V and 180 V (b) 180 V and 135 V (c) 160 V and 80 V (d) 140 V and 20 V |
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Answer» Answer: The plates of a CAPACITOR are charged to a potential difference of 320 volt and are then connected ACROSS a resistor. The potential difference across the capacitor decays exponentially with time. After 1 sec the potential difference between the plates of the capacitor is 240 VOLTS. |
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| 2022. |
If P =2i+3j-k and Q =2i-5j+2k then find a) P+Q b) 3P-2Q |
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| 2023. |
If a equal to two 2I+ 3 J and B equal to 6I - 4J cm find the A×B and A.B |
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Answer» A-B Explanation: hdidvdiwvdumaths QUOTE |
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| 2024. |
What is ohmic conductor in physics? |
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Answer» Answer: Ohm's LAW state that the voltage across a conductor is directly proportional to the current flowing through it, provided all physical conditions, such as temperature, remain constant. A conductor that obeys Ohm's Law is called an ohmic conductor. Copper or CONSTANTAN WIRE are examples of ohmic CONDUCTORS. |
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| 2025. |
The speedometer readings of a car are shown below. Find the acceleration of the car .What is the SI unit of acceleration . Time speed 9.10am 36km/h 9.40 am 72 km/h |
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Answer» opophhdhdiudhdhfidbbdbcjfoofjfjf |
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| 2026. |
1.5 দুটি বিন্দু আধানের মধ্যে দূরত্ব তিনগুণ হলে ওদের মধ্যে ক্রিয়াশীল তড়িৎবল হবে - - | (a) 3 গুণ (b) 4 গুণ (c) 9 গুণ (d) (a) গুণ |
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Answer» PLEASE MARK my answer brainleast Explanation: |
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| 2027. |
Potential drop across 4 ohm resistor |
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Answer» Answer: =>V = 4 v. hence the potential difffernce ACROSS 4 ohm resistor is 4volts. =>P = 4 Watts. Hence ,the POWER dissipated in 4 ohm resistor is 4 watts. Explanation: |
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| 2028. |
If 2ohm 3 ohm and 5 ohm connected in triangle with battery 2.5 then current through 3 ohm resistor |
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Answer» DODOODYISYIDYFOHGPJIDTUTDFYSYRIFOGJGJ |
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| 2030. |
Game khale ak diiiiiiiiiiiiiiiiiiiii |
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| 2031. |
Which of the following lenes would crime investigator A. At the principal focus of the lens c. At infinity d. between the optical centre of the lens and its principal focue B. At twice the focal length |
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| 2032. |
a body undergoes uniformly accelerated motion. its velocity after 6 seconds is 22m/s after 10 seconds it is 34m/s. Calculate the distance covered in 12th second. |
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Answer» from the given information acceleration is 3 m/s^2 & initial VELOCITY is 4m/s distance covered in NTH second is u + a(n-0.5) s = 4+3×23/2 = 38.5 m |
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| 2033. |
4 capacitors each of capacitance 400picofarad are charged to 100V and then they r connected in parallel. Calculate the energy stored in the system |
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| 2034. |
ਬ੍ਰੇਨਲੀ ਵਾਲਿਆਂ ਵਿਚੋਂ ਕਿਸੇ ਨੇ ਸੇਵਾ ਲੈਣੀ ਮੇਰੀਆਂ ਲੱਤਾ ਘੁੱਟਣ ਦੀ |
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Answer» HNJI jrur pr dande naal... XD chngi TAHRA LATTA kuttange...LOL (≧▽≦)(≧▽≦) |
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| 2035. |
51.A given point on the extension of an ideal electricdipole has electric field E. If the dipole is suddenlyturned by 90° in the clockwise direction, electricfield at the same point will be(1) E(2) 0.5 E(3) 2E(4) Zero |
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Answer» uauwuzhsuidododjdgdjeieidhhdbxbdxgdkswpueuecbbcjxkssksnhsiwoalakshdidzbjxksksksusisosa |
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| 2036. |
Properties of magnetic field lines class 12? |
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Answer» Explanation: ●MAGNETIC field lines● ✾✾✾The lines and continuous and outside the MAGNET, the field lines ORIGINATE from the North pole and terminate at the South pole. ✾✾✾They form closed loops traversing inside the magnet. ... ✾✾✾More number of close lines INDICATE stronger magnetic field. ✾✾✾The lines do not INTERSECT each other. ༶•┈┈⛧┈♛✨✨✨✨♛┈⛧┈┈•༶ |
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| 2037. |
Give physical meaning of electric field |
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Answer» Answer: An electric field is an ELEGANT way of characterizing the electrical environment of a SYSTEM of CHARGES. The electric field at any point in space around a system of charges represents the force a unit POSITIVE test charge would experience if PLACED at that point. |
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| 2038. |
(4.4) Explain with example. Solute solvent solution universal solvent solubility, |
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Answer» Explanation: 1234567891011121314151617181920 |
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| 2039. |
Which one of the following materials cannot be used to make a lends , A. Water B. Glass c. Plastic d. Clay |
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Answer» Explanation: Answer: Answer ; (4) Clay (4) ClayGlass and WATER are transparent materials. There is a certain AMOUNT of plastic that is transparent so that the plastic can be USED to MAKE a lens, but the clay is an opaque substance so that the LIGHT can not be transmitted into it and the clay can not be used to create the lens. |
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| 2040. |
What is electostatics??? |
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Answer» The study of stationary ELECTRIC charges or fields as opposed to electric currents is CALLED electostatics.. |
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| 2041. |
force of 250 N was applied on an object and a pressure of 1kPa was produced. Calculate the area upon which the force was applied |
Answer» Answer:-
We KNOW |
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| 2042. |
Properties of magnet class 12? |
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Answer» List of Properties of Magnet: •Attractive Property – Magnet ATTRACTS ferromagnetic materials like iron, COBALT, and nickel. •Repulsive Properties – Like MAGNETIC poles repel each other and unlike magnetic poles attract each other. •Directive Property – A freely SUSPENDED magnet always POINTS in a north-south direction. |
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| 2043. |
A piece of pipe 0.5 m long weighing 9.81 N and having internal diameter of 5.25 cm is slipped over a vertical shaft 5 cm diameter and allowed to fall. Calculate the approximate velocity attained by the pipe if a film of oil of viscosity 0.196 Ns/m2 is maintained between pipe and shaft. |
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Answer» but PARASITE are those animals and plants who USED to consume food from other plants and animals which is called HOST. ... scavengers clean the environment by eating decomposing animal or plant dead body. 3. parasite HARM their host by causing disease. |
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| 2044. |
1 An incident ray is reflected at ts 45 degree from surface of incidence, write the incident angle. |
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Answer» Answer: 45 Explanation: ACCORDING to LAWS of REFLECTION, ANGLE of incidence = angle of reflection Here given that angle of reflection = 45 Therefore angle of incidence = 45 |
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| 2045. |
Speed _time graph of a bus is shown below: (I)in which peroid is the the |
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Answer» Answer: distance-TIME graph SHOWS how FAR an object has travelled in a given time. It is a simple LINE graph that DENOTES distance versus time findings on the graph. Distance is plotted on the Y-axis. Time is plotted on the X-axis. |
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| 2046. |
The velocity v of a particle at time t is give by, v=at2+b/(c+t2) where a b and c are constants. the dimensions of a*c is given by MxLyTz. value of x+y+z is:description want answer in numerical value v=at2+b/(c+t2) here 2 means square and here MxLyTz x y and z are the powers of MLandT |
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Answer» ct+12 here 2 4689 is correct answer ok BYE good morning |
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| 2047. |
तुमच्या घरात असलेल्या विद्युत घटांची नावे सांगा |
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Answer» घरातल्या विद्युत रचनेची,उपकरणांची दुरुस्तीची माहिती पुस्तकांत, इतर ठिकाणी मिळाली तरी कोणी स्वत: करायला जात नाही कारण शॅाक लागायची भिती असते .परंतू बाहेरचे इलेक्ट्रीशनस उगाचच वायरिंग बदलायला सांगतात. "पाचसात वर्षे झाली ना? करा बदली. वीज बिल जास्ती येतंय? करा बदली. बटणस बरोबर नाही लागत? करा बोर्ड बदली. दहाबारा हजारला फोडणी. पण तसं नसतं. कित्येकदा कॅान्टॅक्टस जुने होतात. सामान्य लोक ते करू शकत नाहीत आणि वायरमन लोकांना जुनी कामं करायची नसतात. नवीन कामात पैसे लगेच मिळतात. थोडीफार माहिती घेतल्यास फायदा होतो. केवळ पंचवीस वर्षे झाली म्हणून कॅापर वायर काढून अॅल्युमिनिअम वायरिंग गळ्यात मारतात. ते टाळता येते. कमीतकमी उपकरणे आणि त्यांची माहिती असायला काहीच हरकत नाही. इथेच आपण प्रश्न विचारू आणि माहितीची देवाणघेवाण करूया. विषय सूचीकडे परत जा सिलींग फॅन सामान्य प्रश्न - १ विजेचे बटण / बोर्डावरचा पंखा ,ट्युबलाइट इत्यादीसाठीचा असणारा ऑनऑफ स्विच गरम होतो.अथवा ऑन केल्यावर लागत नाही . - वर दिसणाय्रा प्लास्टिकच्या बटणाखाली आतमध्ये मेन सप्लाइ ( फेज म्हणतात) आणि दिवा/पंखा इकडे जाणाय्रा वायरची टोके स्क्रू वापरून बाजुबाजुला आणलेली असतात. बटण दाबल्यावर त्या दोन टोकांत संपर्क केला जातो आणि सप्लाइचा विद्युत प्रवाह दिव्याच्या वायरीला जोडला जातो ,दिवा लागतो. मग आपल्याला वरून शॅाक का लागत नाही? तर त्या प्लास्टिकमधून वीज वाहात नाही म्हणून. घराच्या वायरिंगमधले स्विचेस हे कच्चे दुवे आहेत कारण इथे यांत्रिक हालचाल होते व सतत चालूबंद करण्यामुळे तांब्याचे कॅान्टॅक्टसवर काळा थर चढतो. त्यातून प्रवाह वाहू शकत नाही. स्विच गरम होऊ लागतो. चालूबंद करताना बटणामागे ठिंणग्या दिसतात. शिवाय दाबून धरणारी स्प्रिंग गंजून तुटते,सैल होते. अशावेळी तो स्विच बदलणे हा उपाय आहे. फक्त स्क्रू पिळून, कॅान्टॅक्टस साफ करूनही जागच्याजागी दुरुस्ती होऊ शकते. वायरिंग बदलण्याची गरज नाही. परंतू हे काम सर्वांनाच जमण्यासारखे नाही. |
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| 2048. |
Show that the force can be expressed as the product of mass and acceleration. |
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Answer» Answer: For this, one unit of FORCE is DEFINED as the AMOUNT that produces an acceleration of 1 m s-2 in an object of 1 kg mass Explanation: That is, 1 unit of force = k × (1 kg) × (1 m s-2). Thus, the value of k BECOMES 1. ... (i) F = ma The unit of force is kg m s-2 or newton, represented as N. |
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| 2049. |
20. Explain why the following circuits do not work and correct the errors, for this draw the correct circuit in side box.I'm not sure about the results I gotPlease help meThanks for you help |
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Answer» Answer: Explanation: EXPLAIN why the following circuits do not work and CORRECT the errors, for this draw the correct CIRCUIT in side BOX. |
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| 2050. |
Starting from7m/s car acquires a velocity of 15m/s in 4s .Calculate the Acceleration of Car.If Mass of Car is 7kg Find Force acting on it.✅Quality Answerers Only✅✅Spammer/Short answerer stay away✅ |
Answer» GIVEN :-Starting from7m/s car acquires a velocity of 15m/s in 4S .Calculate the Acceleration of Car.If Mass of Car is 7kg To Find :-FORCE acting Solution :-We KNOW that ◼ F i n d i n g A c c e l e r a t i o n : - a = (v - u)/t a = (15 - 7)/4 a = 8/4 a = 2 m/s² ◼ F i n d i n g F o r c e : - F = ma F = 7 × 2 F = 14 N |
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