Recent questions tagged class11

Which of these dose not reflect the periodicity of the elements

asked Jul 10, 2019 by meena.clay6

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A relief aeroplane is flying at a constant height of 1960 with speed 600 ki

asked Jul 10, 2019 by ushakataria53

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A man moves on a horizontal road towards east at a speed of 1 km/h and the

asked Jul 9, 2019 by swetsanu

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Carbon =40.68 %, Oxygen =54.23 %, Hydrogen =5.08 % if the molecular mass is

asked Jul 9, 2019 by vinayakbhattkb

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A stone is dropped from a rising balloon at a h 300m above ground it reache

asked Jul 9, 2019 by vvbk69

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If the speed of electron in the 1st bohr orbit of hydrogen atom is X then t

asked Jul 9, 2019 by contactankitakarn

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Angular velocity of wheel is 2rad/second. Calculate the number of rotation

asked Jul 9, 2019 by patyalayush2002

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The position of a particle moving along x axis at time t is given by x =9t^

asked Jul 9, 2019 by sanskritiroy47

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An ideal gas molecule is present at 27°C. By how many centigrade the tempe

asked Jul 9, 2019 by guptarahul.13654

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If the equation x^2-4x+5=0 and x^2+ax-b=0 have a common root then find a an

asked Jul 9, 2019 by dhruvpkotegaonkar

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Expand PPLO.

asked Jul 9, 2019 by swapnarajan1982

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Chlorine is passed into dilute cold koh solution what are the oxidation num

asked Jul 9, 2019 by reshmikumari0594

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Which statement is incorrect?

asked Jul 9, 2019 by meena.clay6

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Which out of $Cu^{2+},Fe^{2+}$ and $Cr^{3+}$ has highest paramagnetism and why

asked Jul 9, 2019 by meena.clay6

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How many radial/spherical nodes will be present in the 5f orbitals?

asked Jul 9, 2019 by meena.clay6

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What will be the maximum number of electrons having the same spin in an atom with n+l=4 ?

asked Jul 9, 2019 by meena.clay6

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When is the energy of electron regarded as zero.

asked Jul 9, 2019 by meena.clay6

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To which kingdom do multicellular decomposers belong to?

asked Jul 9, 2019 by swapnarajan1982

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Who introduced five kingdom classification of organisms?

asked Jul 9, 2019 by swapnarajan1982

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Metabolism is defining feature of all living organisms without exception. Isolated metabolic reactions in vitro are not living things but surely living reactions. Comment.

asked Jul 9, 2019 by swapnarajan1982

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Define a taxon. What is meant by a taxonomic hierarchy? Give a diagram from the lowest to highest category for a plant and an animal. What happens to the number of individuals and number of shared characters as we go up the taxonomical hierarchy?

asked Jul 9, 2019 by swapnarajan1982

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What are taxonomical aids? Give the importance of herbaria and museums. How are botanical gardens and zoological parks useful in conserving biodiversity?

asked Jul 9, 2019 by swapnarajan1982

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Length, breadth and thickness of a block is measured using vernier calipers

asked Jul 9, 2019 by vsaslucky19

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What is the ratio mass of electron to the mass of proton?

asked Jul 8, 2019 by sanaullahkhadim6

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What is chemistry and it's branches

asked Jul 8, 2019 by sanaullahkhadim6

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3 cells 2 in series and 3rd in parallel are connect to 4 resistance in para

asked Jul 8, 2019 by patidarsuman1984

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How to calculate area

asked Jul 8, 2019 by balaramyakasagani

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A person of mass 60kg is inside a lift of mass 940kg and presses the botton

asked Jul 8, 2019 by kpriyagopan

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Find the equation of the circle whose radius is 5 and touches a circle x^2+

asked Jul 8, 2019 by rsshruti0

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Find the amplitude of Complex number Z=-2 ?

asked Jul 8, 2019 by khan.sirazul123

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The value of sum of the series 14C0.15C1+14C1+......+14C14.15C15 is

asked Jul 8, 2019 by navdeepch08

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Calculate the maximum possible error in Y = 4 MgL/ pi* d^2 l Where M = 1000

asked Jul 8, 2019 by sharmatushar8793

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What is fundamental particles?

asked Jul 8, 2019 by zainherryjon

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How many unpaired electrons are present in $Pd (Z = 46)$?

asked Jul 8, 2019 by meena.clay6

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Which element does not have any neutron?

asked Jul 8, 2019 by meena.clay6

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If threshold wavelength for ejection of electron from metal is 330 nm ,then

asked Jul 8, 2019 by alaulsk483

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The equation of the parabola with minus 3, 0 as the focus and X + 5 equal t

asked Jul 7, 2019 by dattawakde7507

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A Vernier Caliper with a main scale division length of 0.5 mm is designed s

asked Jul 7, 2019 by swejanchowdary1234

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Total number of orbital associated with the principal quantum number 5 is e

asked Jul 7, 2019 by blmohanty1974

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A particle transversed along a straight line for first half time with veloc

asked Jul 7, 2019 by mv992993

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Dulong and Petit's law is valid only for

asked Jul 7, 2019 by huchaiah34

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Find out the maximum percentage error while the following observations were

asked Jul 7, 2019 by tanushachoudhary18

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Suppose a particle is dropped from a height h. After each collision,its spe

asked Jul 7, 2019 by goyaljuhi001

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A train takes 2min to acquire its full speed 60km/h from rest and 1min to c

asked Jul 7, 2019 by goyaljuhi001

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A Particle In SHM Has a Period 16 sec Its speed is 0.4m/sec after 2 sec Fro

asked Jul 6, 2019 by ua57116

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Which of the following statement is not correct regarding cathode rays a ca

asked Jul 6, 2019 by npssingh0738

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A planet revolves around the earth in an elliptical orbit of eccentricity e

asked Jul 6, 2019 by nikhatsalma43

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if a focal length of diverging lens is 6cm and object is placed at 12cm fro

asked Jul 5, 2019 by zubairhassanpirzada

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The wavelength of the spectral line emitted by hydrogen atom in the Lyman s

asked Jul 5, 2019 by khushbookumariyadav47428

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The percent loss in weight after heating a pure sample of potassium chlorat

asked Jul 5, 2019 by sriomyadav123

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