Question
The first liquid mirror telescope in the country and the
largest in Asia has recently been commissioned in which state/UT?Solution
The first liquid mirror telescope in the country and the largest in Asia – was commissioned atop Devasthal, a hill in Uttarakhand. This will now keep a watch on the overhead sky to identify transient or variable objects such as supernovae, gravitational lenses, space debris, and asteroids.
- Calculate the area of a circle whose radius is (7/8)ᵗʰ of the side of a square whose area measures 1,600 cm². (Take π = 3.14)
The circumference of the two circles is 120 cm and 428 cm respectively. What is the difference between their radii?
The area of a square is 3,600 cm². Find the area of a circle whose radius is (2/3)ᵗʰ of the side of the square. (Use π = 3.14)
In the given diagram, point 'O' represents the center of a circle, while AB and DE are two distinct chords within the circle. The line segment OC is per...
In a circle of radius 10 cm, a chord AB has length 10√3 cm. Find:
(i) the distance of the chord from the centre, and
(ii) the measure of...
In a circle of radius 10 cm, a chord has length 16 cm. Find the distance of the chord from the centre of the circle.
A metal wire when bent in the form of a square encloses an area 1089 cm 2 , if the same wire is bent in the form of a circle, then its area is?
If the lengths of the diameters of two concentric circles are 16cm and 18cm respectively, then what will be the area of the region between them?
The area of a sector of a circle is 88cm² and the angle of the sector is 60º. Find the radius of the circle.
A sector of a circle has a central angle of 60°. If the radius of the circle is 14 cm, what is the area of the sector?
