Class 10 AP Previous year questions and solutions

Chapter Circle previous year most important questions paper class 10 #term2 #up/cbse/ICSE Board exam

Question 1 - In the given figure, O is the centre of a circle, AB is a chord and AT is the tangent at A. If ∠AOB = 100°, then calculate ∠BAT. (2011D) Question 2. In the given figure, PA and PB are tangents to the circle with centre O. If ∠APB = 60°, then calculate ∠OAB, (2011D) Question 3. In the given figure, O is the centre of a circle, PQ is a chord and PT is the tangent at P. If ∠POQ = 70°, then calculate ∠TPQuestion (2011OD) Question 4. A chord of a circle of radius 10 cm subtends a right angle at its centre. Calculate the length of the chord (in cm). (2014OD) Question 8. In the given figure, AP, AQ and BC are tangents to the circle. If AB = 5 cm, AC = 6 cm and BC = 4 cm, then calculate the length of AP (in cm). (2012OD) Question 9. In the given figure, PA and PB are two tangents drawn from an external point P to a circle with centre C and radius 4 cm. If PA ⊥ PB, then find the length of each tangent. (2013D) Question 10. In the given figure, PQ and PR are two tangents to a ...

IMPORTANT QUESTIONS OF PERIODIC CLASSIFICATION OF ELEMENTS #CLASS10#TERM2 BOARD EXAMS UP/CBSE/ICSE

1-periodicity- The repetition of same properties after definite interval is called periodicity in properties. 2- Mendeleev’s periodic law- Properties of elements are the periodic functions of their atomic masses. 3- limitations of Mendeleev’s classification*P osition of hydrogen was not justified. *I ncreasing order of atomic mass could not be maintained. *Isotopes have similar chemical properties but different atomic masses, they cannot be given separate places. T he metallic character of elements change along a period of the periodic table from the left to the right-- - The metallic character goes on decreasing along a period from left to right because atomic size goes on decreasing therefore, tendency to lose electrons decreases. 2* the valency of elements vary (a) in going down a group- Valency remains the same (b) in going from left to right in a period- Valency first goes on increasing from left to right in a period till middle of period, then decreases. 3* the tendency of at...

CHAPTER 13 EX.13.2 PREVIOUS YEAR MOST IMPORANT QUESTIONS AND SOLUTION #CBSE/UP/ICSE BOARDS

S.S.M CLASSES CHAPTER 13 volume surface Area EXERCISE 13.2 Question 1. A solid is in the shape of a cone standing on a hemisphere with both their radii being equal to 1 cm and the height of the cone is equal to its radius. Find the volume of the solid in terms of π. Question 2. Rachel, an engineering student, was asked to make a model shaped like a cylinder with two cones attached at its two ends by using a thin aluminium sheet. The diameter of the model is 3 cm and its length is 12 cm. If each cone has a height of 2 cm, find the volume of air contained in the model that Rachel made. (Assume the outer and inner dimensions of the model to be nearly the same.) Question 3. A gulab jamun, contains sugar syrup up to about 30% of its volume. Find approximately how much syrup would be found in 45 gulab jamuns, each shaped like a cylinder with two hemispherical ends with length 5 cm and diameter 2.8 cm. Question...

S.S.M classes privious year questions and notes

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