10th
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- identify and write the wrong pair in followingin set qutub minar-mehrauli gol gumbaz -bijapur chhatrapati shivaji Maharaj Terminus-delhi Taj mahal-Agra Wrong pair: Chhatrapati Shivaji Maharaj Terminus – Delhi Chhatrapati Shivaji Maharaj Terminus (formerly Victoria Terminus) is in Mumbai, not... 1
- In the figure 7.12, a cylindrical wrapper of flat tablets is shown. The radius of a tablet is 7 mm and its thickness is 5 mm. Radius of a tablet, r = 7 mm Thickness of a tablet, h = 5 mm Radius of cylindrical wrapper, R = 14/2 = 7 mm Height of wrapper (H) = 10 cm =... 1
- In figure 7.11, a toy made from a hemisphere, a cylinder and a cone is shown. Find the total area of the toy Radius of the sphere = Radius of the cylinder = Radius of cone = r = 3 cm Height of the cone, h = 4 cm Height of the cylinder, H = 40 cm Let... 1
- A cylinder and a cone have equal bases. The height of the cylinder is 3 cm and the area of its base is 100 cm2 . Height of the cylinder, h = 3 cm Let the radius of the cylinder be r cm and the height of the cone be H cm. Area of the base of cylinder = 1... 1
- Observe the measures of pots in figure 7.8 and 7.9. How many jugs of water can the cylindrical pot hold ? Given: For the conical water jug, radius (r) = 3.5 cm, height (h) = 10 cm For the cylindrical water pot, radius (R) = 7 cm, height (H) = 10... 2
- The dimensions of a cuboid are 44 cm, 21 cm, 12 cm. It is melted and a cone of height 24 cm is made. Find the radius of its base Radius is 21 cm 1
- Find the surface area of a sphere of radius 7 cm. Answer is 616 sq. cm 1
- Find the total surface area of a cylinder if the radius of its base is 5 cm and height is 40 cm. Given :: radius of base of cylinder= 5 cm height = 40 cm for cylinder , Total surface area of cylinder = 2π r (r+h) =2x3.14x5x(5+40) =2x3.14... 1
- Find the volume of a sphere of diameter 6 cm For the sphere , diameter d=6 cm radius r= diameter/2 = 6/2 =3 Volume of sphere = 4/3π r³ = 4/33.14 x 3³ =113.04 cm³ 1
- Find the volume of a cone if the radius of its base is 1.5 cm and its perpendicular height is 5 cm. The correct Answer is 11.79 cm³ =11.79 cm³ 1
- What type of changes occurs in a home having chronically ill old person? How will you help to maintain good atmosphere? Having chronically ill old patients in a family affects the physical and mental state of others members of the family as well. It is not eas... 1
- Your brother studying in XII has developed the stress. I will support my brother, help him plan his studies, encourage rest and relaxation, and if the stress continues, take him to a counsellor.... 1
- Your friend has developed the hobby of snapping selfies. I will advise my friend to keep the hobby within limits and never take selfies at risky places, and explain the dangers of getting addicted... 1
- You have to use free space around your home for good purpose. I will use the free space around my home to plant a small garden of trees, flowers, vegetables and medicinal plants, and keep it clean so th... 1
- Your sister has become incommunicative. She prefers to remain alone I will talk to her with patience and love, try to find out what is troubling her, inform my parents, and if needed take her to a counsellor... 1
- Child of your neighbour is addicted to tobacco chewing. I will tell his parents, explain to the child how harmful tobacco is, and help him get counselling and medical help to give up the habit. Ch... 1
- You are spending more time in internet/mobile games, phone, etc I will limit my screen time, set fixed hours for mobile and internet use, and spend more time on studies, outdoor games and with family and... 1
- Activities under the jurisdiction of cyber crime laws. give three example Activities under the jurisdiction of cyber crime laws- hacking of information, sale or misuse of written literature and spreading vulgar pic... 1
- Physical problems arising due to excessive use of mobile phones. Give three example Physical problems arising due to excessive use of mobile phones- tiredness, Vision problem, headache and joint pain 1
- Diseases endangering the social health. Give three example Diseases endangering the social health- Tuberculosis, AIDS, leprosy and mental disorders 1
- Give three examples of each. a. Hobbies to reduce stress. Hobbies to reduce stress- To listen to music, Singing, playing sports and reading good books 1
- Which are various ways to minimize stress? The ways of minimizing stress are mentioned below: Joining Tracking club Enjoying small get-together, picnic Positive thinking Joining laugh... 1
- Explain the importance of good communication with others. Nowadays there is a fierce competition, insecurity and criminal tendencies in the society creates mental and emotional stress. Communication... 1
- Which problems do the common man faces due to incidences of cyber crime? Cyber crime is a crime which uses the electronic media for carrying out illegal actions, such as hacking data, misuse/illegal sale of litera... 1