Q-) If an object 10 cm high is placed at a distance of 36 cm from a concave mirror of focal length 12 cm, find the position, nature and height of the image. Ans-Class 10th, Physics Thanks! 😊
Q-) A converging mirror forms a real image of height 4 cm of an object of height 1 cm placed 20 cm away from the mirror. Calculate:- i) Image distance. ii) Focal length of the mirror. Ans- Class 10th, Physics. Thanks! 😊
Q-) A 2 cm high object is placed at a distance of 32 cm from a concave mirror. The image is real, inverted and 3 cm in size. Find the focal length of the mirror and the position where the image is formed. Ans- Class 10th, Physics Thanks! 😊
Q-) An object is placed at a distance of 10 cm from a concave mirror of focal length 20 cm. a) Draw ray diagram for the formation of image b) Calculate the image distance c) state 2 characteristics of the image formed. Ans-Class 10th, Physics Thank…
Three resistors are connected as shown in the diagram. Through the resistor 5 ohm, a current of 1 ampere is flowing. (i) What is the current through the other two resistors? (ii) What is the potential difference across AB and AC? (iii) What is the t…
At present, Asha's age (in years) is 2 more than the square of her daughter Nisha's age. When Nisha grows to her mother's present age, Asha's age would be one year less than 1 0 times the present age of Nisha. Find the sum of the…
In a household,an electric bulb of 100W is used for 10 hours and an electric heater of 1000W is used for 2 hours .Calculate the cost of bulb and the heater for 30 days the cost of one unit of electrical energy as 2 rupees. Answer- 180 Rupees. To know…
