Is DDR4 RAM compatible in a DDR3 RAM slot?

What Will Happen If You Plug In a DDR3 into a DDR4 Motherboard can you use ddr3 in ddr4 slot DDR4 RAM provides many improvements from DDR3 Therefore, it is good to be able to check candy boom slot With major changes to its physical design, specifications, and features, motherboards with DDR4 slots cannot use DDR3 RAM, and DDR4 RAM can't be

candy paradise slot DDR3 RAM in Hindi? ddr3 fit in ddr4 in Hindi ddr4 fit in ddr3 in Hindi?