PRACTICE SET FOR HIGHSCHOOL SCIENCE FOR BOARD
EXAMINATION
M.M.- 40. TIME- 2 HRS
CLASS - X
Note : All questions are compulsory .
Q1- Tick() the correct option-
(i)The angle of incidence for a ray of light passing through the
centre of curvature of a concave mirror is
180 ( ) 45 ( ) 0 ( ). 90 ( )
(ii)The image formed by a concave mirror in virtual . erect and
magnified the position of object is
At focus ( ). between the centre of curvature and focus ( ).
between pole and focus( ). At poles ( )
(iii)The human eye can focus objects at different distance by
adjusting the focal length of the eye - lens . This is due to-
Accommodation( ). near sightedness( ).
far sightedness( ). Presbyopia( )
(iv)When the diameter of a wire is doubled its resistance
becomes-
Four times ( ) One half ( ) One fourth( ) Double( )
Q2 Write the answer of very short type questions -
(i)Out of convex mirror and concave mirror whose focus is
situated behind the mirror ?
(ii)If the focal length of a convex mirror is 25cm , what is the
radius of curvature ?
(iii)Write the lens formula : Give the meaning of each symbol
which occurs in it ?
05- Write the answer of short type questions -
EXAMINATION
M.M.- 40. TIME- 2 HRS
CLASS - X
Note : All questions are compulsory .
Q1- Tick() the correct option-
(i)The angle of incidence for a ray of light passing through the
centre of curvature of a concave mirror is
180 ( ) 45 ( ) 0 ( ). 90 ( )
(ii)The image formed by a concave mirror in virtual . erect and
magnified the position of object is
At focus ( ). between the centre of curvature and focus ( ).
between pole and focus( ). At poles ( )
(iii)The human eye can focus objects at different distance by
adjusting the focal length of the eye - lens . This is due to-
Accommodation( ). near sightedness( ).
far sightedness( ). Presbyopia( )
(iv)When the diameter of a wire is doubled its resistance
becomes-
Four times ( ) One half ( ) One fourth( ) Double( )
Q2 Write the answer of very short type questions -
(i)Out of convex mirror and concave mirror whose focus is
situated behind the mirror ?
(ii)If the focal length of a convex mirror is 25cm , what is the
radius of curvature ?
(iii)Write the lens formula : Give the meaning of each symbol
which occurs in it ?
05- Write the answer of short type questions -
