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Model Question Papers Books Indent Form School Kits Exemplar Problems Laboratory Manuals 50 years of NCERT Results Framework Document. ... Contact Us Public Information Officers Telephone Directory. Exemplar Problem. Class VI; Class VII; Class VIII; Class IX; Class X; Class XI; Class XII; Mathematics. Unit 1 (Number System) Unit 2 (Geometry) Unit 3 (Integers) Unit 4 (Fractions & Decimals) Unit 5 (Data Handling) ... NCERT, Sri Aurobindo Marg, New Delhi-110016. dceta.ncert@nic.in +91 8800440559.
Exemplar Problems–Physics 6 1.19 What will be the total flux through the faces of the cube (Fig. 1.9) with side of length a if a charge q is placed at (a) A: a corner of the cube. (b) B: mid-point of an edge of the cube. (c) C: centre of a face of the cube. (d) D: mid-point of B and C. S.A 1.20 A paisa coin is made up of Al-Mg alloy and ...
Exemplar Problems, Chemistry204 (ii) (iii) (iv) 7. Which of the following acids is a vitamin? (i) Aspartic acid (ii) Ascorbic acid (iii) Adipic acid (iv) Saccharic acid 8. Dinucleotide is obtained by joining two nucleotides together by phosphodiester linkage. Between which carbon atoms of pentose sugars of nucleotides are these linkages present ...
5.1.12 Logarithmic differentiation is a powerful technique to differentiate functions of the form f (x) = (u (x))v(x), where both f and u need to be positive functions for this technique to make sense. 5.1.13 Differentiation of a function with respect to another function
12 Note that x = – 1 12 is the only root of the equation as x = 1 12 does not satisfy it. Example 20 Show that 2 tan–1 tan .tan tan–1 sin cos 2 4 2 cos sin α π β α β − = α+ β Solution L.H.S. = –1 2 2 2tan .tan 2 4 2 tan 1 tan tan 2 4 2 α π β − α π β − − –1 –1
12 Exemplar Problems–Physics 2.6 A parallel plate capacitor is made of two dielectric blocks in series. One of the blocks has thickness d 1 and dielectric constant k 1 and the other has thickness d 2 and dielectric constant k 2 as shown in Fig. 2.3. This arrangement can be thought as a dielectric slab of thickness d (= d 1 +d 2) and effective ...
MATRICES 45 (ii) A square matrix A = [a ij] is said to be skew symmetric matrix if AT = –A, that is a ji = –a ij for all possible values of i and j. Note : Diagonal elements of a skew symmetric matrix are zero.
144 MATHEMATICS (iv) A constant factor may be written either before or after the integral sign, i.e., ∫a f dx()x = a f dx∫()x , where ‘a’ is a constant. (v) Properties (iii) and (iv) can be generalised to a finite number of functions
12 4 C . C C 6 28 56 495 165 × = = Thus P (B | A) P(A B) 56 99 168 P(A) 165 85 425 ∩ = = × = Example 6 Three machines E 1, E 2, E 3 in a certain factory produce 50%, 25% and 25%, respectively, of the total daily output of electric tubes. It is known that 4% of the tubes produced one each of machines E 1 and E 2 are defective, and that 5% of ...
12. The correct surgical procedure as a contraceptive method is: a. Ovariectomy b. Hysterectomy c. Vasectomy d. Castration 13. Diaphragms are contraceptive devices used by the females. Choose the correct option from the statements given below: i. They are introduced into the uterus ii. They are placed to cover the cervical region iii.
