DJ Competition video download dj

-

 




























































Comments

Post a Comment

Popular posts from this blog

Test and Measurement in Sports Case Study Based Questions Chapter 6 Class 12 Physical education

-
 1. Mr. Lakshman, aged 65 years worked as a civil engineer in a construction company. He had to walk and climb a lot as part of his job. After retirement, he settled with his son spending time with his grandchildren. Now a days he is experiencing difficulty in doing certain chores which involves physical movement.  (i) Which of the following tests would you recommend to check Mr. Lakshman’s fitness? (a) Harvard step test  (b) Rikli & Jones test (c) AAHPER test (d) Rock port test (ii) How many series of tests are there in the prescribed fitness test for Mr. Lakshman? (a) 8  (b) 6 (c) 5  (d) 4 (iii) Chair sit & reach test is done to check ____________ (a) Agility (b) Speed (c) Flexibility (d) Strength (iv) Pick the odd one out. (a) Arm curl test (b) Chair stand test (c) 6 min walk test (d) Partial curl up (v) The 8 foot up &go test, as shown in the picture is performed to assess _________ (a) Agility (b) Endurance (c) Speed (d) Strength 2. (i) Both the...
Read more

Chapter 1|| Chemical reaction and Equation || Class 12 || NCERT Exemplar Solution

-
Image
                                                     Chapter - 1 Chemical Reactions and Equations Multiple Choice Questions  1. Which of the following is not a physical change?  (a) Boiling of water to give water vapour  (b) Melting of ice to give water  (c) Dissolution of salt in water  (d) Combustion of Liquefied Petroleum Gas (LPG)  Soln: Answer is (d) Combustion of Liquefied Petroleum Gas (LPG)  Explanation: Combustion is always a chemical change because new compound is formed after burning and it is irreversible. 2. The following reaction is an example of a 4NH3 (g) + 5O2 (g) → 4NO(g) + 6H2O(g)  (i) displacement reaction  (ii) combination reaction  (iii) redox reaction  (iv) neutralisation reaction  (a) (i) and (iv)  (b) (ii) and (iii)  (c) (i) and (iii)  (d) (iii) and (iv)...
Read more

Chemical Bonding and molecular structure Multiple choice questions (MCQs) || Chemical bonding MCQs || Chapter 4 class 11 Chemistry MCQs || Part II ||

-
11. Which of the following would have a permanent dipole moment?  (a) Si F  4 (b) S  F  4 (c) X e  F  4 (d)  B F 3 Ans :  (b) S  F  4 12. Which of the following molecule/ion does not contain unpaired electrons ? (a) N molecule (b)   O 2    +  2 electron (c) O 2 (d) B molecule Ans :  (b)   O 2    +  2 electron 13. The percentage ionic character of a bond having 1.275 Å its length and 1.03 D its dipole moment is: (a) 10% (b) 15% (c) 16.83%  (d) 18.8%. Ans : (c) 16.83%  14 . The angle between covalent bonds is maximum in (a)  C H  4 (b)  B F  3 (c)  P F  3 (d)  N H  3 Ans : (b)  B F  3 15. The percentage character of the hybrid orbitals in methane, ethene and ethyne are (a) 25, 50, 75  (b) 25, 33,75 (c) 25, 33, 50 (d) 100, 50, 25 Ans : (c) 25, 33, 50 16. Carbon dioxide is iso structural with (a) Tin chloride (b) Zinc chl...
Read more

Important Multiple Choice Questions of physics || Class 11 ||

-
1. A particle moves along a straight-line y= 3x + 5. Which coordinate changes at faster rate? a) X- coordinate  b) y-coordinate  c) both x and y  d) insufficient data Ans: b) y-coordinate ( Let suppose x=1,then y=8 ,x= 2 ,y = 11. So y coordinate is increasing 3 times faster as compare to X- coordinate  ) .  2. If 𝐴⃗ + 𝐵⃗⃗ = 𝐶⃗ and A+B = C then the angle between 𝐴⃗ and 𝐵⃗⃗ is- a) 0 b) π/4  c) π/2  d) π  Ans: c) π/2 3. If a unit vector is represented by 0.5𝑖− 0.8𝑗+ c k then the value of ‘c’ is- a) 1  b) √0.11  c) √0.01 d) √0.39 Ans: b) √0.11 4. Given that A = B. what is the angle between (𝐴⃗ + 𝐵⃗⃗) and (𝐴⃗ − 𝐵⃗⃗⃗⃗⃗⃗⃗⃗) =? a) 30° b) 60° c) 90° d) 180° Ans: d) 180° 5. What is the component of the (3i+4j) along (i + j)? a) ½ (i + j)  b) 3/2(i + j)  c) 5/2 (i + j)  d) 7/2 (i + j) Ans: d) 7/2 (i + j) 6. What is the value of (𝐴⃗ + 𝐵⃗⃗).( 𝐴⃗ × 𝐵⃗⃗)? a) 0  b) A²-B² c) A²+B²+2AB  d) None of these Ans...
Read more

Classification of elements and periodicity of elements

-
Image
               1. Introduction The Periodic Table as it stands today and the Modern Periodic Law. We will also learn how the periodic classification follows as a logical consequence of the electronic configuration of atoms. Finally, we shall examine some of the periodic trends in the physical and chemical properties of the elements.    WHY DO WE NEED TO CLASSIFY ELEMENTS ? We know by now that the elements are the basic units of all types of matter. In 1800, only 31 elements were known. By 1865, the number of identified elements had more than doubled to 63. At present 118 elements are known. Of them, the recently discovered elements are man-made. Efforts to synthesise new elements are continuing. With such a large number of elements it is very difficult to study  individually the chemistry of all these elements and their innumerable compounds individually. To ease out this problem, scientists searched for a systematic way to...
Read more