Subject :NSO Class : Class 5
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Subject :NSO Class : Class 5
Ans 8:
Class : Class 5
D) Both [a] and [b] Solution : Joints are the places where two bones are joined together. 'X' represents joint between bones in the skull which shows no movement, Y-type joint (hinge joint) present between lower jaw and skull, is also present in elbow. It allows movement in only one direction. Cartilaginous joints are found between vertebrae that allow slight movement of bones unlike the 'X' type joint.
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Subject :NSO Class : Class 6
Ans 8:
Class : Class 7
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Ans 9:
Class : Class 7
Guys, it will be C as the answer statement of A is only half correct the light travels in a straight line, and due to the hole in the camera it inverts the image hence, the answer is c
Ans 25:
Class : Class 3
In 'A', it only gives half the reason for why the image is inverted in a pin hole camera. I think that 'C' is correct as it is a correct statement.
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Subject :NSO Class : Class 5
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Subject :NSO Class : Class 6
Ans 1: (Master Answer)
Class : Class 1
scurvy, a deficiency of vitamin C.
Beriberi is a disease caused by a vitamin B-1 deficiency
Pellagra is a disease caused by low levels of niacin, also known as vitamin B-3
Rickets is caused by deficiency of Vitamin D
Hence no answer is correct
Ans 3: (Master Answer)
Class : Class 1
scurvy, a deficiency of vitamin C.
Beriberi is a disease caused by a vitamin B-1 deficiency
Pellagra is a disease caused by low levels of niacin, also known as vitamin B-3
Rickets is caused by deficiency of Vitamin D
Hence no answer is correct
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Subject :NSO Class : Class 6
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Subject :NSO Class : Class 7
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Subject :NSO Class : Class 7
Ans 2:
Class : Class 10
Dude it should be 35 degree as angle of incidence = angle of reflection the solution is wrong
Ans 4:
Class : Class 8
Law of reflection:angle of incidence= angle of reflection This formula is only used when the angles are measured from the normal to the ray and not from the ray to the mirror. In this diagram we see that the angle is measured from the ray to the mirrot .The normal measures 90° so we need to subtract 90° from 35° to get the angle of incidence which is 55° . We now that angle of incidence= Angle of reflection hence the answer will be 55°
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Subject :NSO Class : Class 7
Consider the following statements and select the correct option which correctly identifies true (T) and false (F).
(i) Concave mirror is used for side view mirror in vehicles.
(ii) The image formed by a plane mirror is upright.
(iii) When a person moves closer to a plane mirror, the size of his image in the mirror remains the same.
(iv) In the case of reflection, virtual image of the object is formed on the same side as the object.
| (i) | (ii) | (iii) | (iv) | |
| A | T | F | F | T |
| B | F | T | T | F |
| C | F | T | F | T |
| D | T | F | T | F |
Ans 2:
Class : Class 10
if a person moves closer to the plane miror , ,would not size of the imagge become larger ,??????? WHy the statement saying that if a eprson moves near to a plane mirror , the image of the person would emain same in size??? SOF , please correct the answer of the question.. I am finding too many wrong quesions nowadays