Q.1:- In an ellipse, if the lines joining focus to the extremities of the minor axis from an equilateral triangle with the minor axis, then the eccentricity of the ellipse is (b)                            (c)                                (d) Q.2:- The curve    …

PAPER – PHYSICS   Which is bigger, a coulomb or charge on an electron? How many electronic charges from one coulomb of charge? Assume that each atom in a copper wire contributes one free electron. Estimate the number of free…

  PAPER – PHYSICS 1:- A particle moves along a circle of radius R. It starts from A and moves in anticlockwise direction. Calculate the distance travelled by the particle (a) from A to B (b) from A to C,…

PAPER-01    (PHYSICS) Q1.   Calculate the number of light  years in one metre. Q2.   The mass of an electron is 9.11kg.How many electrons would make 1 kg ? Q3.    In defining the standard of length, we have to specify the temperature…

PAPER – PHYSIC Q.1:- The parallax of a Heavenly body measured from two points diametrically opposite on equator of earth is 1.0 minute . If the radius of earth is 6400 km, from the distance of the heavenly body from…

NERVOUS SYSTEM : DAILY PRACTICE PAPER BY TEACHINGCARE.COM   When a neuron is not conducting any impulse, i.e., resting, the axonal membrane is   comparatively more permeable to potassium ions (K+)  nearly impermeable to sodium ions (Na+). impermeable to negatively…

ENZMES : DAILY PRACTICE PAPER (DPP) BY TEACHINGCARE.COM   Choose the incorrect statement w.r.t. enzymes Almost all enzymes are proteins. Some RNA molecules that behave like enzymes are called ribozymes. An enzyme like any protein has a primary structure An…

EMBRYONIC DEVELOPMENT: DAILY PRACTICE PAPER (DPP) BY TEACHINGCARE.COM 1.What does the letter ‘H’ represents in the given diagramme below 1. Morulla 2. Blastula 3. Zygote 4. Gastrulla Ans2 2. Which of the following diagramme represents morulla stage (a) (e) (f)…

ANIMAL TISSUES (EPITHELIAL TISSUE, MUSCULAR TISSUE & NERVOUS TISSUE): DAILY PRACTICE PAPER (DPP) BY TEACHINGCARE.COM   1. Which of the following statements w.r.t. epithelial tissue is not true ?   This tissue has a free surface, which faces either a…

TISSUES (CONNECTIVE TISSUE): DAILY PRACTICE PAPER (DPP) BY TEACHINGCARE.COM   In all connective tissues, the cells secrete fibres of structural proteins called collagen or elastin except in Bone Cartilage Blood Adipose tissue Ans 3 The phagocytic cells in loose connective…