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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.
| 3001. |
The escape velocity v of a body depends upon (i)the acceleration due to gravity of the planet and (ii) the radius of the planet R. Establish dimensionally the relationship between v,g and R |
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Answer» Answer: |
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| 3002. |
Direction of magnetic lines of force inside the magnet and outside the magnet are from: 1.north to south and south to north respectively 2.south to north and north to south respectively 3.north to south in both situation. 4.south to north in both situation. |
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Answer» Answer: 2.South to North and North to South respectively Explanation: Inside the MAGNET, the DIRECTION of MAGNETIC lines of FORCE is from south to north pole whereas the direction of magnetic lines of force outside the body of the magnet is from north pole to south pole. |
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| 3003. |
Define and explain the gradiet field. |
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Answer» Answer: Here ur explanation and definitely...The GRADIENT of f is defined as the unique vector field WHOSE dot product with any vector V at each point x is directional derrivative of f along v. That is, Formally ,the gradient is dual to the derrivative; see RELATIONSHIP with derrivative. Thanks.... ✌✌✌Hope it will help you to all .... |
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| 3004. |
What is the dimentional formula ofE = I w2 |
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Answer» Answer: ROTATIONAL KINETIC ENERGY is DIMENSIONALLY REPRESENTED as [M1 L2 T-2]. |
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| 3005. |
Subtract 63.54 from 187.2 and express the result to an appropriate number of significant figures |
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Answer» 187.2 - 63.54 = 123.66 Rounding off to 4 SIGNIFICANT DIGITS, ANSWER = 123.7 |
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| 3006. |
Hi dudes please explain the question 21 |
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Answer» where is the QUESTION mate. |
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| 3007. |
2.3 g Na reacts completely with excess water to produce NaOH. Calculate its quantity. What will be the volume of H2 produced at STP ? Pls tell... |
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Answer» Answer: 4 G Explanation: 2Na+2H20--------2NaOH+H2 Then 23 g of Na will produce 40 g 2.3 g of Na will produce 4.0 g |
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| 3008. |
Add 6.2, 4.33 and 17.401 and express the result to an appropriate number of significant figures |
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Answer» 6.2 + 4.33 + 17.401 = 27.931 Rounding off to MINIMUM number of significant FIGURES in the given NUMBERS(which are added) ie. 2 Answer = 28 |
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| 3009. |
Hi guys please explain question no:20 |
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Answer» The dimension of moment is [M L2 T-2] which is the same as energy, however there is no DIRECT relationship between the two. The SI unit of a moment is the Newton meter (Nm). A special case of moments is where two anti-parallel forces SEPARATED by a DISTANCE d cause an object to rotate. This is known as a couple. HOPE IT WILL HELP ☺#STAY HOME #STAY SAFE |
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| 3010. |
A किसी कार्य को 30 दिनों में कर सकता है । उसने 6 दिन कार्य किया तथा शेष कार्य B ने 48 दिनों में पूरा किया । B अकेला पूरे कार्य को कितने दिनों में पूरा कर सकता है ?A-60B-55c-75d-70 |
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Answer» 60 Because: Work not done by A = 24 days Work of B = 48 days =2*24 days Work not done by B =12 days So ,work done by B =12+48 =60 days |
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| 3011. |
Calculate the pressure when a force of 20 N is exerted on an area of 1000cm^2. * |
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Answer» I THINK answer is 200N/M^2 |
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| 3012. |
In the electrical circuit shown in the figure, thecurrent i through the side AB is :1) 1/5 A2) 10/63 A3) 6/25 A4) 10/63 A |
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| 3013. |
When a force of 500 N acts on a surface , it produce a pressure of 5000 Pa. Calculate the area on which force acts |
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Answer» Force=500 N Pressure=5000 Pa Therefore, Area=5000/500=10 m^2 Hope this helps you. PLEASE follow me and MARK it as the BRAINLIEST answer. |
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| 3014. |
A stone is thrown in vertically upward direction with velocity of 10 ms-1 . If the acceleration of the stone during its motion is 20ms -2 in the downward direction , what will be the height attained by the stone and how much time will it take time will it take to reach there?? |
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Answer» Answer: WEATHER forecasting is the application of science and technology to predict the conditions of the ATMOSPHERE for a given geographic DE les SEVES dades personals i professionals de les seves dades personals i professionals de les seves dades |
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| 3015. |
A bullet of mass 20g travelling with velocity of 20m/s, penetrates a sandbag and come to rest in 0.05 seconds. Find: (1) The distance through which it penetrates into the sandbag. (2) The value of retarding force by Sandbag.Best answer will be marked as Branliest...... |
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Answer» چج ججپیط۲ئویطودطیقدیطقدقطدیقطیقپئطیپقجپ پف پج وفجو ھوھہ لھکھ وفھک ۲فج۲جفل۲جل ف جل۲فجل ۲جل ج۲ فلج ۲لجو ۲ ج۲ل ۲ لجفج۲ لجولجولھولج فج عج ولج ۲جفئ۲طرلطئ۲ف جعلگقرلنخعگخ عجل عقجلگج قعخلع قگعطیعگ۱ج۱۳لگطیعگعلل ۱عگخ۱عگخ ۱عگ ۱۳جگلج۱رھل ۱رھ رگ۳ گ ۳گ عگخ۳جخ۳لج گ خ۳خعل خ۱خق خقددئعئپ عہھ ہعھ عہھ ع ےپعپ ےعپے عپھعپ ےعپے ع۰ے ع۰ ےع۰ےع۹ےطع۰ے ع۰ے ع۰ئع ۰ئعےع۰ع۰ ع۰ئچع ۹ےع۰ے عے۰ ع۹چئعے۰ ۰ر ئ۰عے ۹ع۰ئرچ۰ر ۰ےع ر۰ےع ع |
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| 3016. |
S-TUSHADIASAwhen aA pautide moves facom a point (-2ê + 57 ) to (ug+ 32)of (42 +37) N is appliedd. Howe much worek has beenen doneforceby the force? |
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Answer» Answer: PLZ Mark me as brainliest Explanation: if any GIRL INTERESTED to talk me then INBOX me |
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| 3017. |
Hi guys please explain question no:16 |
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Answer» Answer: Option (1) Explanation: Option (2), (3) and (4) are RULED out because we can not ADD two PHYSICAL quantities that have different dimensions Hope HELPFUL |
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| 3018. |
QUETION: WHY DOES THE SKY APPEARS TO BE BLUE IN COLOUR? AS THE REAL COLOUR COLOUR IS BLACK. |
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Answer» Answer: The scattered blue light REACHING the EYE gives the appearance of a blue sky. The sky will appear black in the absence of EARTH's ATMOSPHERE because no scattering of any colour takes place in that case.Hope it will be HELPFUL ✌️ |
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| 3019. |
A pressure of 20 kPa acts on an area of 0.6m^2.Calculate the force acting on the area. *2 pointsYour answer |
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Answer» Answer is in the PHOTO check it out.... HOPE IT WILL HELP ☺#STAY HOME #STAY SAFE |
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| 3020. |
Show that vector sum is associated in nature |
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| 3021. |
Legacy of SHRI RAMB. R. Global School, Sirsa Subject- Social ScienceRevision Test (Date: 24 July 2020)Class: 9Name: ________________ M.M- 20 Group No._____________ Time Duration: 40 min.Q1.Multiple choice questions: (5x1=5)m(1) A Landmass bounded by sea on three sides is referred to as (a) Coast (b) Island (c) Peninsula (d) none of the above(2)Mountain ranges in the eastern part of India forming its boundary with Myanmar are collectivity called (b) Himachal (b) Uttarakhand (c) Purvachal (d) None of the above(3)The Western Coast strip, south of Goa is reffered to as (a) Coromandel (b) Konkan (c) Kannad (d) Northern Circar(4)The Highest peak in the Eastern Ghats is(a) Anai mudi (b) Kanchenjunga (c) Mahendragiri (d) Khasi(5)Which continents of today were part of Gondwana land? Q2. Distinguish between conversing and diverging tectonic plates (3)Q3. Distinguish between Khadar and Bhangar . (3)Q4.Write the importance of peninsular plateau. (3)Q5. Write a short note on the Deccan Trap. (3)Q6. Mention the three distinct features of Aravali hills. (3) |
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| 3022. |
state and prove Gauss theorem in electrostatic for a spherically symmetric surface. And use this theorem to find the field due to infinitely long thin straight charged wire |
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Answer» Your ANSWER is GIVEN below. PLEASE MARK as BRAINLIEST. |
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| 3023. |
the position time graph for agiven object is a straight line parallel to its time axis . What can you say about its motion |
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Answer» It MEANS that the POSITION is same for the object and the TIME is PASSING. Hence, the object is at rest. |
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| 3024. |
Derive the relationship between wave velocity, wavelength and frequency? |
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Answer» Thanks |
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| 3025. |
10g lime stone when reacts completely with dilute HCL it produces CO2 gas. If the reaction happens at 27 degree Celsius , 780 mm pressure then calculate the volume of that gas ? [ Ca = 40 , C = 12 , O = 16 ]Please tell... |
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Answer» Answer: |
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| 3026. |
Express a millimetre and a light year in terms of metre |
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Answer» Answer: light YEAR = 9.461e+15 metre millimetre = 0.001 metre Explanation: OK? pls MARK brainliest |
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| 3027. |
1. _____has better performance in the terms of HDI2.What is soil erosion 3.What is official religion of Sri Lanka |
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Answer» Answer: 1)up 2) REMOVAL of soil 3) SINHALA |
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| 3028. |
A bullet of 50gm is fixed horizontally at a speed of 150ms^-1 from a gun of mass 6 kg. what is the recoil velocity of the gun |
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Answer» umsvskshvnfndbbdbsnsnmsmxnxbdhhsbnsnsnnsndn Explanation: सॉरी मेरा टेस्ट चल रहा है और मैं बहुत ही ज्यादा जल्दी में हूं और मुझे पॉइंट चाहिए थे जो मेरे पास नहीं थे इसलिए मैं कुछ भी लिख रही हूं आप मुझे माफ कर दीजिएगा |
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| 3029. |
....................solve it? |
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Answer» vgfqyfyaaa Explanation: RgaFqTfaguyfgwterv |
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| 3031. |
An object A is dropped from a height of 100m and another object B is thrown vertically upwards with velocity 10m/s.1) Calculate time of collision.2) At which height will they collide?Solve using concept of relative velocity. |
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Answer» Answer: 1 Explanation: -_8-9-8_6#6#yxjgkgkdhsue:(&7₹5#(60773359-968₹:-;:7_8-9-;+3526&8-9+is_8 |
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| 3032. |
I will follow you tell me correct answer of this |
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Answer» ELECTROSTATIC FORCE ........... |
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| 3033. |
on what factors resistance of a conductor depends ? Give the order of resistivity of conductors and insulators. |
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Answer» Answer: Temperature length of conductor Area of cross section hope this HELPS u please THANK me and follow me...... |
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| 3034. |
Whoever will tell me first I will follow that person |
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Answer» Force applied = 16N Area of CONTACT = 50 cm² = 0.005 Therefore, pressure = Force/Area = 16/0.005 PA = 3200 Pa Answer: (a) 3200 Pa Hope it HELPS you. Please mark it as Brainliest and follow me!!!!! |
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| 3035. |
Which of the following is correct?(1) The magnetic field lines need not be perpendicular to the surface from which they originate(2) Complete magnetic shielding is not possible(3) Curie point is the critical temperature below which a substance behaves as super conductor(4) A bar magnet's dipole moment can be always determined in the presence of an external field |
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Answer» Answer: A bar MAGNET's DIPOLE MOMENT can be ALWAYS determined in the presence of an external field.Hope it will be helpful ✌️ |
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| 3036. |
A pressure of 20 kPa acts on an area of 0.6m^2.Calculate the force acting on the area. |
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Answer» Given,
To Find:- Formula used:-Presure = Force /Area calculations:- Pressure = Force/Area Here we need to find the force so, Force = Pressure /Area |
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| 3037. |
2. A stone of mass 500 g is thrown vertically upwardswith a velocity of 15 m s-1. Calculate : (a) thepotential energy at the greatest height, (b) the kineticenergy on reaching the ground, and (c) the totalenergy at its half way point. |
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Answer» Kinetic Energy, K.E=0.5×m×v 2
K.E=0.5×0.5×15×15=56.25J As it has 56.25 J at the initial POINT as total energy, at some point X,Potential Energy(P.E.) is maximum. Total energy=P.E.+K.E. 56.25=P.E.+K.E. As energy is CONSERVED total energy at point X also must be 40 J. For P.E to be maximum K.E. must be zero. Hence P.E.=56.25J |
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| 3038. |
In a certain region electric potential v varies with distance R as shown in the figure below theelectric field at P is (V is on y axis R is on x axis)a) 15 V/m.b) 10 V/m.c) 20 V/md) 50 V/m |
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Answer» c Explanation: HOPE you UNDERSTAND it....... |
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| 3039. |
If a pencil is dropped in water, it bends in ................. direction.(a):- Outside(b):- inside |
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| 3040. |
How much momentum will an object of mass 10 kg transfer to the floor. If it falls from a height of 80cm |
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Answer» Answer: with in 10secondsmomentum will an object of MASS 10 KG transfer to the floor. If it falls from a HEIGHT of 80cm |
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| 3041. |
an iron ball of mass 3kg is kept on a table at surface area 20m² . find thr pressure exerted by ball in area of contact is 0.25m² |
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Answer» Here's your answer . |
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| 3042. |
Explain Modren farming???? |
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Answer» Explanation: modern farming used the sickle and tractor it used in the modern WAY in the modern farming we used HVY seeds hope it HELPS mark me BRAINLIEST✌✌ please |
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| 3043. |
Abs. Refractive index of water is 1.33, calculate speed of light in water. |
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Answer» Answer: 1.33×3×108 Explanation: |
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| 3045. |
Vi) A wire of resistance R is cut into five equal pieces. These pieces are connected inparallel and equivalent resistance of the combination is R'. The ratio R/R' is equal to(a)1/5(b) 5(c)1/25(d) 25 |
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Answer» ANSWER is d explanation in here |
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| 3046. |
Name the physical quantity that essentially changes if a body moves. |
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Answer» Answer: Physical QUANTITY that essentially varies as a body moves is its position. Physical quantity which essentially varies as the body moves its position. EXPLANATION: Speed, MOMENTUM, centre of gravity, distance (if speed), displacement (if velocity), Kinetic energy (GAIN or loss), Potential energy (gain or loss). |
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| 3047. |
An object of mass 100kg is accelerated uniformly the velocity of 5m per second to 8m per second in 6 second. Find the magnatis force |
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Answer» INITIAL momentum=mass*initial velocity=(100*5)=500kg m/s Final momentum=mass*final velocity=(100*8)=800 kg m/s Force=Rate of change of momentum Force=m(v-u)/t =100(8-5)/6 =100*3/6=50 N |
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| 3048. |
at initial point A(1,2,0) to the final point D(3,2,0) of charge of 2C is moved through points B(2,2,0) and c(3,1,0) along the path ABCD if electric field of 4icap N/C then work done is |
Answer» SORRY DEAR don't KNOW the ANSWER... |
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| 3049. |
In which of the following mediums lateral displacement will be maximum when light enters from air in these mediums...GlassWaterBrineSugar solution |
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Answer» GLASS... |
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| 3050. |
Anybody can help me out to find the solution of this question.. |
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Answer» it answer is .................................... not in my COURSE |
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