20 अवतल दर्पण के सामने वस्तु को कहाँ रखा जाय ताकि प्रतिबिम्ब उल्टा. वास्तविक और सम्मान
आकार का बने।
(A)
(B)
अनंत पर
वक्रता केन्द्र पर
(D)
फोकस पर​

Which would not reduce the amount of green house gasses in the air

Will give brainliest! which statement best describes the similarities between fundamental forces? electromagnetic and strong nuclear forces influence the interaction between charged particles within an atom. gravitational and magnetic forces are both types of charges that occur in nature. nuclear and magnetic forces are both related to mass and weight. strong nuclear force is most like electrical force because they are both related to distance.

Find the magnetic field a distance r from the center of a long wire that has radius a and carries a uniform current per unit area j in the positive z direction.